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 A347644 #5 Sep 09 2021 15:58:15 %S A347644 1,1,2,3,4,5,6,7,8,10,10,12,12,14,13,15,15,17,17,19,18,21,19,21,20,23, %T A347644 21,26,22,27,24,28,27,32,30,34,31,35,31,36,32,38,32,40,32,41,34,41,36, %U A347644 44,38,46,38,46,39,48,39,51,41,52,38,54,42,55,44,56 %N A347644 Number of partitions of n into at most 3 prime powers (including 1). %Y A347644 Cf. A000961, A023893, A341112, A347643, A347645, A347646, A347647. %K A347644 nonn %O A347644 0,3 %A A347644 _Ilya Gutkovskiy_, Sep 09 2021