[seqfan] Re: Comment on A151750 [erratum]

Max Alekseyev maxale at gmail.com
Sun Aug 2 16:29:45 CEST 2009

On Sat, Aug 1, 2009 at 5:33 PM, David Wilson<davidwwilson at comcast.net> wrote:

> Theorem: For prime p
>    p does not divide choose(2n, n) <=> all p-ary digits of n are < p/2.

That's a trivial consequence of Lucas' Theorem:


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