This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A096126 #8 Nov 09 2019 15:38:48 %S A096126 1,3,280,2627625,5194672859376,5150805819130303332, %T A096126 1461034854396267778567973305958400, %U A096126 450538787986875167583433232345723106006796340625,146413934927214422927834111686633731590253260933067148964500000000 %N A096126 a(n) is the least integer of the form (n^2)!/(n!)^k. %C A096126 (n^2)!/(n!)^(n+1) is an integer for every n (see A057599). Hence k >= n+1. Conjecture: k=n+1 only when n is prime or a power of a prime. %H A096126 Andrew Howroyd, <a href="/A096126/b096126.txt">Table of n, a(n) for n = 1..25</a> %e A096126 a(4) = 16!/(4!)^5 = 2627625 which is not further divisible by 24. %o A096126 (PARI) a(n)={if(n==1, 1, (n^2)!/(n!^valuation((n^2)!,n!)))} \\ _Andrew Howroyd_, Nov 09 2019 %Y A096126 Cf. A034841, A057599, A096127. %K A096126 nonn %O A096126 1,2 %A A096126 _Amarnath Murthy_, Jul 03 2004 %E A096126 Edited by _Don Reble_, Jul 04 2004 %E A096126 a(9) from _Andrew Howroyd_, Nov 09 2019