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 A294106 #22 Oct 29 2017 06:43:20 %S A294106 1,3,0,9,27,0,0,0,0,27,81,0,243,729,0,0,0,0,0,0,0,0,0,0,0,0,0,81,243, %T A294106 0,729,2187,0,0,0,0,2187,6561,0,19683,59049,0,0,0,0,0,0,0,0,0,0,0,0,0, %U A294106 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 %N A294106 Sum of products of terms in all partitions of 3*n into distinct powers of 3. %H A294106 Seiichi Manyama, <a href="/A294106/b294106.txt">Table of n, a(n) for n = 0..1000</a> %e A294106 n | partitions of 3*n into distinct powers of 3 | a(n) %e A294106 ------------------------------------------------------ %e A294106 1 | 3 | 3 %e A294106 2 | | 0 %e A294106 3 | 9 | 9 %e A294106 4 | 9 + 3 | 27 %Y A294106 Cf. A029930, A039966, A294298. %K A294106 nonn %O A294106 0,2 %A A294106 _Seiichi Manyama_, Oct 28 2017