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 A244431 #35 Feb 16 2025 08:33:23 %S A244431 16,17,26,27,39,40,41,42,44,45,47,48,53,54,55,56,59,60,71,72,74,75,81, %T A244431 82,83,84,85,86,89,90,99,100,102,103,105,106,107,108,123,124,125,128, %U A244431 129,135,136,179,180 %N A244431 Indices of repeated terms in A001379, the list of degrees of irreducible representations of Monster group M. %C A244431 A001379 has 194 terms, but the number of distinct terms is 194 - 23 - 1 = 194 - 24 = 170. %H A244431 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/MonstrousMoonshine.html">Monstrous Moonshine</a> %e A244431 The only triple in A001379 is A001379(123) = A001379(124) = A001379(125) = 5514132424881463208443904. The rest of the repeated terms are pairs, for example; the first of them is A001379(16) = A001379(17) = 8980616927734375, so a(1) = 16 and a(2) = 17. %Y A244431 Cf. A001379, A247156. %K A244431 nonn,fini,full %O A244431 1,1 %A A244431 _Omar E. Pol_, Nov 28 2014