Question

Number of points that can be reached by following a certain pattern of jumps

score 64 · Answer 1 · 2026-04-16 06:48:12

64

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Number of points that can be reached by following a certain pattern of jumps

Published on 16 Apr 2026 - 6:48

score 64 · Answer 2 · 2026-04-16 19:50:34

64

Views

Number of ways a handshaking can take place

Published on 16 Apr 2026 - 19:50

score 2.4k · Answer 3 · 2026-04-16 19:39:26

2.4k

Views

3 digits for a 4 digit pin code

Published on 16 Apr 2026 - 19:39

score 139 · Answer 4 · 2026-03-25 01:21:24

139

Views

What interesting properties does $A^3$ have?

Published on 25 Mar 2026 - 1:21

score 445 · Answer 5 · 2026-04-14 11:12:19

445

Views

Choosing $5$ elements from first $14$ natural numbers so that at least two of the five numbers are consecutive

Published on 14 Apr 2026 - 11:12

score 69 · Answer 6 · 2026-04-13 17:57:22

Number of combinations of $7$ of the first $17$ natural numbers in which there are at least two consecutive numbers

score 4.2k · Answer 7 · 2026-04-17 15:14:50

4.2k

Views

Find the number of ordered pairs of positive integers (x, y) that satisfy the equation (1/x) +(1/y)= 1/2004.

Published on 17 Apr 2026 - 15:14

score 82 · Answer 8 · 2026-04-14 10:30:04

82

Views

Number of ways to split Binary Necklace

Published on 14 Apr 2026 - 10:30

score 62 · Answer 9 · 2026-04-09 11:59:04

62

Views

Lottery ticket sales and ‘coverage’

Published on 09 Apr 2026 - 11:59

score 74 · Answer 10 · 2026-04-13 19:24:25

74

Views

Combinatorics - How many numbers with all different digits are between $1000$ and $7856$?

Published on 13 Apr 2026 - 19:24

score 92 · Answer 11 · 2026-04-13 15:42:32

92

Views

What is "$\ldots$" called in English when it comes to counting rule for compound events?

Published on 13 Apr 2026 - 15:42

score 134 · Answer 12 · 2026-04-14 19:37:53

134

Views

Count sequences of length $n$, with fixed first and last element and elements differ by one

Published on 14 Apr 2026 - 19:37

score 52 · Answer 13 · 2026-04-12 10:49:12

52

Views

Is there accepted notation for the various "duals" of a polynomial? Does any interesting theory surround them?

Published on 12 Apr 2026 - 10:49

score 237 · Answer 14 · 2026-04-12 22:14:48

237

Views

Polynomial recursion from sequence recursion

Published on 12 Apr 2026 - 22:14

score 293 · Answer 15 · 2026-04-14 22:25:42

293

Views

Why does $A_5$ have $\binom{5}{4}$ Sylow 2-subgroups?

Published on 14 Apr 2026 - 22:25

List Question

Number of points that can be reached by following a certain pattern of jumps

Number of ways a handshaking can take place

3 digits for a 4 digit pin code

What interesting properties does $A^3$ have?

Choosing $5$ elements from first $14$ natural numbers so that at least two of the five numbers are consecutive

Number of combinations of $7$ of the first $17$ natural numbers in which there are at least two consecutive numbers

Find the number of ordered pairs of positive integers (x, y) that satisfy the equation (1/x) +(1/y)= 1/2004.

Number of ways to split Binary Necklace

Lottery ticket sales and ‘coverage’

Combinatorics - How many numbers with all different digits are between $1000$ and $7856$?

What is "$\ldots$" called in English when it comes to counting rule for compound events?

Count sequences of length $n$, with fixed first and last element and elements differ by one

Is there accepted notation for the various "duals" of a polynomial? Does any interesting theory surround them?

Polynomial recursion from sequence recursion

Why does $A_5$ have $\binom{5}{4}$ Sylow 2-subgroups?

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