Author: Brendan McKay
Posted: Sat, 11 Jan 2003 10:37:53 +1100
>> From: Brendan McKay "bdm"
The following problem has no important application that I know of.
It just occurred to me as something that would interest a few
people in this group.
Say that a binomial coefficient binomial(n,k) is "non-trivial" if
n and k are integers such that 2 <= k <= n-2. The problem is to
determine if (and how) a given number is a non-trivial binomial
coefficient.
For example, if we are given
11159690566590580740354583612991667619792058478202676400
we would like to quickly recognise that it equals binomial(187,92).
I suspect that considering the theory of binomial coefficients
modulo a prime might be productive.
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