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 A331984 #6 Feb 16 2025 08:33:59 %S A331984 1,1,0,0,0,1,2,0,0,0,0,0,0,0,1,2,0,0,0,2,6,0,0,0,0,0,0,0,0,0,1,2,0,0, %T A331984 0,2,6,0,0,0,0,0,0,0,2,6,0,0,0,6,24,0,0,0,0,1,2,0,0,0,2,6,0,0,0,0,0,0, %U A331984 0,2,6,0,0,0,6,24,0,0,0,0,0,0,0,0,0,2,6,0,0,0,6,25 %N A331984 Number of compositions (ordered partitions) of n into distinct square pyramidal numbers. %H A331984 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/SquarePyramidalNumber.html">Square Pyramidal Number</a> %H A331984 <a href="/index/Com#comp">Index entries for sequences related to compositions</a> %H A331984 <a href="/index/Su#ssq">Index entries for sequences related to sums of squares</a> %e A331984 a(20) = 6 because we have [14, 5, 1], [14, 1, 5], [5, 14, 1], [5, 1, 14], [1, 14, 5] and [1, 5, 14]. %Y A331984 Cf. A000330, A279220, A298246, A322340, A331844, A331919. %K A331984 nonn %O A331984 0,7 %A A331984 _Ilya Gutkovskiy_, Feb 03 2020