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 A339444 #6 Feb 16 2025 08:34:01 %S A339444 1,1,0,2,0,1,2,1,2,1,4,1,4,2,3,6,4,6,4,7,6,10,8,8,11,11,14,11,17,14, %T A339444 22,19,18,24,24,30,27,33,31,38,42,39,47,49,54,59,60,63,72,77,79,85,95, %U A339444 94,104,116,115,131,133,142,154,165,168,180,200,203 %N A339444 Number of partitions of n into triangular numbers such that the number of parts is a triangular number. %H A339444 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/TriangularNumber.html">Triangular Number</a> %H A339444 <a href="/index/Par#part">Index entries for sequences related to partitions</a> %H A339444 <a href="/index/Pol#polygonal_numbers">Index to sequences related to polygonal numbers</a> %e A339444 [1] %e A339444 [1 1] [1] %e A339444 [1 1 1] [1 1] [1] %e A339444 a(10) = 4 because we have [1 1 1 1], [1 3 3], [3 6] and [10]. %Y A339444 Cf. A000217, A007294, A085755, A178927, A280352, A339445. %K A339444 nonn %O A339444 0,4 %A A339444 _Ilya Gutkovskiy_, Dec 05 2020