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 A334010 #10 Feb 16 2025 08:34:00 %S A334010 1,703,274550,11132303325 %N A334010 a(n) is the least integer that can be expressed as the sum of one or more consecutive nonzero hexagonal numbers in exactly n ways. %H A334010 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/HexagonalNumber.html">Hexagonal Number</a> %H A334010 <a href="/index/Pol#polygonal_numbers">Index to sequences related to polygonal numbers</a> %e A334010 Let S(k, m) denote the sum of m hexagonal numbers starting from the k-th. We have %e A334010 a(1) = S(1, 1); %e A334010 a(2) = S(19, 1) = S(13, 2); %e A334010 a(3) = S(62, 25) = S(184, 4) = S(25, 51); %e A334010 a(4) = S(3065, 505) = S(22490, 11) = S(1215, 1430) = S(1938, 946). %Y A334010 Cf. A000384, A054859, A068314, A186337, A298467, A319185, A334007, A334008, A334011, A334012. %K A334010 nonn,hard,more %O A334010 1,2 %A A334010 _Ilya Gutkovskiy_, Apr 12 2020 %E A334010 a(4) from _Giovanni Resta_, Apr 13 2020