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 A005980 M1169 #17 Jul 08 2025 16:40:23 %S A005980 1,0,2,4,9,16,35,63,129,234,445,798,1458,2568,4561,7924,13770,23584, %T A005980 40301,68097,114646,191336,317893,524396,861054,1405130,2282651, %U A005980 3688254,5933463 %N A005980 Let F(x) = 1 + x + 4x^2 + 9x^3 + ... = g.f. for A002835 (solid partitions restricted to two planes) and expand (1-x)(1-x^2)(1-x^3)...*F(x) in powers of x. %D A005980 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %H A005980 D. E. Knuth, <a href="http://dx.doi.org/10.1090/S0025-5718-1970-0277401-7">A Note on Solid Partitions</a>, Math. Comp. 24, 955-961, 1970. %Y A005980 Cf. A002836. %K A005980 nonn,more %O A005980 0,3 %A A005980 _N. J. A. Sloane_