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 A339047 #4 Dec 21 2020 07:32:57 %S A339047 1,1,1,1,1,1,1,1,1,1,2,2,1,1,1,1,1,1,1,2,2,2,1,2,1,1,1,1,1,1,2,1,1,1, %T A339047 1,1,1,1,3,2,1,2,1,2,1,1,2,2,1,2,1,1,1,1,1,1,1,1,1,3,2,1,1,1,3,1,1,2, %U A339047 1,1,2,1,1,1,3 %N A339047 a(n) gives the multiplicity for A154777(n) representable as x^2 + 2*y^2 with positive integers x and y, for n >= 1. %F A339047 a(n) gives the number of occurrences of A154777(n) = x^2 + 2*y^2 with positive integers x and y. This is obtained from triangle A338432. %e A339047 See A338432 for examples. %e A339047 The pairs [A154777(n), a(n)] begin: %e A339047 [3, 1], [6, 1], [9, 1], [11, 1], [12, 1], [17, 1], [18, 1], [19, 1], [22, 1], [24, 1], [27, 2], [33, 2], [34, 1], [36, 1], [38, 1], [41, 1], [43, 1], [44, 1], [48, 1], [51, 2], [54, 2], [57, 2], [59, 1], [66, 2], [67, 1], [68, 1], [72, 1], [73, 1], [75, 1], [76, 1], [81, 2], [82, 1], [83, 1], [86, 1], [88, 1], [89, 1], [96, 1], [97, 1], [99, 3], ... %Y A339047 Cf. A154777, A338432. %K A339047 nonn,easy %O A339047 1,11 %A A339047 _Wolfdieter Lang_, Dec 09 2020