René Gy

# 45 Questions

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### If $\frac{1}{8} \left(5^m-2\cdot 3^m+1\right)$ is prime, then $m=2p$ where $p$ is prime?

Nov 30 '15 at 19:50 René Gy 1,277
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### When $\frac{1}{n}\binom{n}{r}$ is an integer , again?

Nov 13 '15 at 9:41 Community 1
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110
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242
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218
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3
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94
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3
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284
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### Greatest Common Divisors in columns and rows of Pascal Triangle

Oct 18 '15 at 9:26 René Gy 1,277
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### Trying to prove a congruence for Stirling numbers of the second kind

Jan 15 '15 at 18:38 Community 1
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3
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603
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98
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### A sort of Wolstenholme's $p^2$-congruence.

Mar 28 at 21:37 René Gy 1,277
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### For $p$ a prime larger than $2k+2$, is it possible that $p^2$ divides $B_{2k}$?

Mar 27 at 21:21 J. W. Tanner 8,880
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152
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### What is this sequence?

Oct 27 '17 at 21:43 René Gy 1,277

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### Quartic Diophantine equation $2 x^4 - 2 x^2 = 3 (y^2 - 1)$

Mar 29 '16 at 5:26 Martin Sleziak 46.1k
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90
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193
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58
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1
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### A $p$-congruence involving both kinds of Stirling numbers.

Apr 6 at 18:14 René Gy 1,277
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