Question

Subsets of a set, symmetric differences of the form $\{ i , i + 1 \}$

score 184 · Answer 1 · 2026-04-15 11:32:33

184

Views

Subsets of a set, symmetric differences of the form $\{ i , i + 1 \}$

Published on 15 Apr 2026 - 11:32

score 93 · Answer 2 · 2026-04-14 01:38:30

93

Views

Combinatorics - What is the number of ways $K$ elements sum to $N$?

Published on 14 Apr 2026 - 1:38

score 72 · Answer 3 · 2026-04-17 14:35:53

72

Views

Enumeration with factorial

Published on 17 Apr 2026 - 14:35

score 179 · Answer 4 · 2026-04-17 04:23:39

179

Views

Combinatorics: Number of Integer Solutions for $x_1 + x_2 + x_3 + x_4 + x_5 + x_6 < 56$?

Published on 17 Apr 2026 - 4:23

score 487 · Answer 5 · 2026-04-13 09:36:00

487

Views

In how many ways can we pick 7 balls out of a bag which contains several red , blue and green balls?

Published on 13 Apr 2026 - 9:36

score 100 · Answer 6 · 2026-04-14 04:15:48

100

Views

Number of Distinct Terms in an Expansion

Published on 14 Apr 2026 - 4:15

score 73 · Answer 7 · 2026-04-12 07:02:20

73

Views

Finding an expression for the generating function of a sequence using algebraic operations

Published on 12 Apr 2026 - 7:02

score 170 · Answer 8 · 2026-04-14 20:55:16

170

Views

Number of ways to pick balls from an urn if one type of ball runs out

Published on 14 Apr 2026 - 20:55

score 87 · Answer 9 · 2026-04-11 09:50:39

87

Views

Combinations of integers exercise

Published on 11 Apr 2026 - 9:50

score 98 · Answer 10 · 2026-04-17 12:45:13

98

Views

Wilf's generatingfunctionology 1.6.6

Published on 17 Apr 2026 - 12:45

score 519 · Answer 11 · 2026-04-14 08:47:39

519

Views

Probability of birthdays of thirty people

Published on 14 Apr 2026 - 8:47

score 325 · Answer 12 · 2026-04-16 04:13:08

325

Views

How to find a polynomial expression for $q_p = \sum_{\ell=0}^p \ell^3$?

Published on 16 Apr 2026 - 4:13

score 196 · Answer 13 · 2026-05-10 20:17:28

196

Views

If P is an nxn permutation matrix, is there an upper bound on k such that $P^k = I$?

Published on 10 May 2026 - 20:17

score 79 · Answer 14 · 2026-04-08 21:51:28

79

Views

Can this be solved using a formula?

Published on 08 Apr 2026 - 21:51

score 42 · Answer 15 · 2026-04-14 11:37:04

42

Views

Number of paths across a grid (extended)

Published on 14 Apr 2026 - 11:37

List Question

Subsets of a set, symmetric differences of the form $\{ i , i + 1 \}$

Combinatorics - What is the number of ways $K$ elements sum to $N$?

Enumeration with factorial

Combinatorics: Number of Integer Solutions for $x_1 + x_2 + x_3 + x_4 + x_5 + x_6 < 56$?

In how many ways can we pick 7 balls out of a bag which contains several red , blue and green balls?

Number of Distinct Terms in an Expansion

Finding an expression for the generating function of a sequence using algebraic operations

Number of ways to pick balls from an urn if one type of ball runs out

Combinations of integers exercise

Wilf's generatingfunctionology 1.6.6

Probability of birthdays of thirty people

How to find a polynomial expression for $q_p = \sum_{\ell=0}^p \ell^3$?

If P is an nxn permutation matrix, is there an upper bound on k such that $P^k = I$?

Can this be solved using a formula?

Number of paths across a grid (extended)

Trending Questions

Popular # Hahtags

Popular Questions