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 A309202 #7 Jul 26 2019 17:57:04 %S A309202 0,1,0,1,10,1,0,3,0,1,32,1,78,7,0,1,34,1,0,7,12,1,0,15,0,1,8,1,58,1,0, %T A309202 15,154,1,24,1,666,1,12,1,82,1,128,1,24,1,140,7,0,25,16,1,106,1,32,19, %U A309202 0,1,176,1,1830,1,0,15,0,1,200,23,36,1,0,1,2628,37,24,1,66,1,236,27,0,1,0,55,0,43 %N A309202 Peter Munn showed in A111273 that if A111273(n)=m then if m is odd, n <= m, and if m is even, n <= 2*m-1; a(n) is either m-n or 2*m-1-n in the two cases. %C A309202 It is known that if p is an odd prime, a(p-1) = 1 (see A111273). %Y A309202 Cf. A111273. %K A309202 nonn %O A309202 1,5 %A A309202 _N. J. A. Sloane_, Jul 26 2019