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 A270773 #5 Mar 22 2016 19:50:34
%S A270773 21147,158269,1205911,9413380,75528808,623920659,5310053713,
%T A270773 46567171489,420709044049,3914022281500,37477219255928,
%U A270773 369100763875603,3736539797544947,38855043652790333,414747029924640427,4541354700620109968,50976255126737190060
%N A270773 Total sum of the sizes of all blocks with minimal element 10 in all set partitions of {1,2,...,n}.
%H A270773 Alois P. Heinz, <a href="/A270773/b270773.txt">Table of n, a(n) for n = 10..575</a>
%H A270773 Wikipedia, <a href="https://en.wikipedia.org/wiki/Partition_of_a_set">Partition of a set</a>
%Y A270773 Column k=10 of A270702.
%Y A270773 A diagonal of A270701.
%K A270773 nonn
%O A270773 10,1
%A A270773 _Alois P. Heinz_, Mar 22 2016