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 A338510 #10 Dec 02 2020 17:57:45
%S A338510 9,50,484,2312,21904,143648,1098304,8454272,69488896,544236032,
%T A338510 4315964416,34410088448,276019941376,2206276984832,17595407417344,
%U A338510 140741783355392,1126398178164736,9007405414350848,72063366589579264,576468448910508032,4611760785521115136
%N A338510 a(n) is smallest number in column n >= 0 of the triangle in A247687.
%C A338510 Since sigma(a(n)) = (2^(n+1) - 1)*(1 + p_n + (p_n)^2) where p_n = A014210(n+1), lim_{n->infinity} sigma(a(n)) = 2*a(n).
%F A338510 a(n) = 2^n * A014210(n+1)^2, n >= 0.
%e A338510 a(4) = 16 * 37^2 = 21904 since 37 is the first prime larger than 32.
%t A338510 a338510[n_] := 2^n NextPrime[2^(n+1)]^2/;n>=0
%t A338510 Map[a338510, Range[0, 20]]
%Y A338510 Cf. A014210, A237593, A247687.
%K A338510 nonn
%O A338510 0,1
%A A338510 _Hartmut F. W. Hoft_, Oct 31 2020