Question

What is the sample space in this case?

score 49 · Answer 1 · 2026-04-14 01:40:49

49

Views

What is the sample space in this case?

Published on 14 Apr 2026 - 1:40

score 94 · Answer 2 · 2026-05-11 09:08:39

94

Views

Closed form for $c_m = \sum_{n=|m|}^{\infty} \left(\dfrac{1}{2}\right)^{2n} (-1)^{m+n}{2n \choose m+n}$, $m$ integer

Published on 11 May 2026 - 9:08

score 68 · Answer 3 · 2026-04-14 14:42:22

68

Views

Is the following combinatorial identity true? Is there any way to prove it?

Published on 14 Apr 2026 - 14:42

score 79 · Answer 4 · 2026-04-13 04:23:50

79

Views

Combinatorics: solutions to $\sum_{i=1}^5x_i=30$ where $\forall i , i\leq x_i \leq 3i$

Published on 13 Apr 2026 - 4:23

score 277 · Answer 5 · 2026-05-14 13:25:06

277

Views

On existence of positive integer solution of $\binom{x+y}{2}=ax+by$

Published on 14 May 2026 - 13:25

score 121 · Answer 6 · 2026-04-15 02:51:38

121

Views

Proving $\eqalign{n\choose k} = {n\choose k-1} \frac{n-k+1}{k}$

Published on 15 Apr 2026 - 2:51

score 234 · Answer 7 · 2026-04-16 08:50:01

234

Views

Proving that for $n \equiv 0 \pmod{2}$, we get ${n \choose 0} < {n \choose 1} <\ldots< {n \choose n/2-1}<{n\choose n/2}$ etc.

Published on 16 Apr 2026 - 8:50

score 85 · Answer 8 · 2026-04-16 05:03:07

85

Views

Roads in a grid $(s+m+1) \times (n-m)$

Published on 16 Apr 2026 - 5:03

score 416 · Answer 9 · 2026-04-10 06:21:49

416

Views

Recurrence Relation for Lunch Order

Published on 10 Apr 2026 - 6:21

score 535 · Answer 10 · 2026-04-15 11:24:41

535

Views

Probability of Straight of 4 in 5 Card Poker Hand

Published on 15 Apr 2026 - 11:24

score 858 · Answer 11 · 2026-04-11 23:17:12

858

Views

recurrence relation for $n$-digit quaternary sequences

Published on 11 Apr 2026 - 23:17

score 266 · Answer 12 · 2026-05-15 23:35:06

266

Views

labelled rooted tree with odd degree

Published on 15 May 2026 - 23:35

score 165 · Answer 13 · 2026-05-13 09:31:15

165

Views

Polya Enumeration Theorem cycle index variable interpretation

Published on 13 May 2026 - 9:31

score 455 · Answer 14 · 2026-04-16 10:26:29

455

Views

How to construct a block-walking argument proof for $\sum_{k=0}^l {l-k \choose m} {q+k \choose n} = {l+q+1 \choose m+n+1}$?

Published on 16 Apr 2026 - 10:26

score 57 · Answer 15 · 2026-04-14 17:19:50

57

Views

Sørensen-Dice coefficient equivalence

Published on 14 Apr 2026 - 17:19

List Question

What is the sample space in this case?

Closed form for $c_m = \sum_{n=|m|}^{\infty} \left(\dfrac{1}{2}\right)^{2n} (-1)^{m+n}{2n \choose m+n}$, $m$ integer

Is the following combinatorial identity true? Is there any way to prove it?

Combinatorics: solutions to $\sum_{i=1}^5x_i=30$ where $\forall i , i\leq x_i \leq 3i$

On existence of positive integer solution of $\binom{x+y}{2}=ax+by$

Proving $\eqalign{n\choose k} = {n\choose k-1} \frac{n-k+1}{k}$

Proving that for $n \equiv 0 \pmod{2}$, we get ${n \choose 0} < {n \choose 1} <\ldots< {n \choose n/2-1}<{n\choose n/2}$ etc.

Roads in a grid $(s+m+1) \times (n-m)$

Recurrence Relation for Lunch Order

Probability of Straight of 4 in 5 Card Poker Hand

recurrence relation for $n$-digit quaternary sequences

labelled rooted tree with odd degree

Polya Enumeration Theorem cycle index variable interpretation

How to construct a block-walking argument proof for $\sum_{k=0}^l {l-k \choose m} {q+k \choose n} = {l+q+1 \choose m+n+1}$?

Sørensen-Dice coefficient equivalence

Trending Questions

Popular # Hahtags

Popular Questions