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 A212281 #17 Jun 18 2025 03:16:19
%S A212281 1,1,1,1,2,2,3,2,2,5,6,1,8,2,5,7,2,3,26,5,8,4,16,3,8,4,10,1,13,8,2,19,
%T A212281 4,11,11,7,3,1,12,13,4,1,24,2,8,5,9,25,16,2,12,55,26,84,17,22,44,22,
%U A212281 37,7,48,4,37,18,7,39,16,19,7,15,19,36,30,1,14,15
%N A212281 Minimal m >= 1 such that n!/m+1 is prime.
%H A212281 Amiram Eldar, <a href="/A212281/b212281.txt">Table of n, a(n) for n = 0..1000</a>
%t A212281 a[n_] := Block[{f=n!,j=1}, While[! PrimeQ[1+Floor[f/j]], j++]; j]; a/@Range[0,75] (* _Giovanni Resta_, Feb 14 2013 *)
%Y A212281 Cf. A212282.
%K A212281 nonn
%O A212281 0,5
%A A212281 _Vladimir Shevelev_, Feb 14 2013
%E A212281 a(13)-a(75) from _Giovanni Resta_, Feb 14 2013