List questions from recreational-mathematics

Published on 09 Apr 2026 - 1:42

240

Views

Closed form of $\sum\limits_{n=1}^\infty \frac{γ(n+a,bn)n^k}{(n+c)!}$ with the Lower Gamma function?

Published on 14 Apr 2026 - 19:04

117

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Conjecture related to Lychrel numbers

Published on 15 Apr 2026 - 12:27

789

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6 Heads Followed by 6 Tails (Coin Flipping)

Published on 16 Apr 2026 - 1:06

101

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Why was it valid to invent the imaginary unit, $i$?

Published on 13 Apr 2026 - 19:41

86

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Triangle game on $\mathbb{R}^2$: Can Alice always seek to construct equilateral triangles of length 1?

Published on 13 Apr 2026 - 18:11

31

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Learning about probabilities

Published on 10 Apr 2026 - 7:05

288

Views

Primes made from alternating factorials

Published on 16 Apr 2026 - 5:21

46

Views

Cycles in modified reverse-and-add process

Published on 11 Apr 2026 - 13:57

398

Views

Explicit series expansion for inverse of $e^{-x}\left(\frac{x^2}2+x+1\right)$

Published on 11 Apr 2026 - 21:59

40

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Hilbert's Hotel's plates, apeirotypography, and diminishing returns

Published on 12 Apr 2026 - 11:14

42

Views

Number of possibilities to form a cube from 6 asymmetrically labelled squares.

Published on 16 Apr 2026 - 15:41

258

Views

Converting odds to probabilities

Published on 15 Apr 2026 - 6:41

48

Views

Find a Closed Form for this Recursively Defined Sequence

Published on 13 Apr 2026 - 22:18

484

Views

Yankee swap without stealing: Prob of last player ending with his/her own gift

Published on 12 Apr 2026 - 22:59

List Question

how triangle inequality works here?

Closed form of $\sum\limits_{n=1}^\infty \frac{γ(n+a,bn)n^k}{(n+c)!}$ with the Lower Gamma function?

Conjecture related to Lychrel numbers

6 Heads Followed by 6 Tails (Coin Flipping)

Why was it valid to invent the imaginary unit, $i$?

Triangle game on $\mathbb{R}^2$: Can Alice always seek to construct equilateral triangles of length 1?

Learning about probabilities

Primes made from alternating factorials

Cycles in modified reverse-and-add process

Explicit series expansion for inverse of $e^{-x}\left(\frac{x^2}2+x+1\right)$

Hilbert's Hotel's plates, apeirotypography, and diminishing returns

Number of possibilities to form a cube from 6 asymmetrically labelled squares.

Converting odds to probabilities

Find a Closed Form for this Recursively Defined Sequence

Yankee swap without stealing: Prob of last player ending with his/her own gift

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