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 A316973 #22 Dec 14 2019 15:48:42
%S A316973 1,1,3,4,7,7,15,12,18,16,25,23,14,22,26,33,23,38,32,35,45,49,41,44,58,
%T A316973 49,59,39,49,69,54,57,57,75,79,62,75,76,74,81,75,78,74,90,86,86,88,78,
%U A316973 78,105,106,109,129,91,92,111,108,101,126,130,116,129,133,140
%N A316973 a(n) is the number of occurrences of n in A316774.
%C A316973 These values may be only conjectural, in which case the b-file should be changed to an a-file and marked as conjectured. - _N. J. A. Sloane_, Dec 14 2019
%H A316973 Alois P. Heinz, <a href="/A316973/b316973.txt">Table of n, a(n) for n = 0..5000</a>
%H A316973 Altug Alkan, <a href="/A316973/a316973.png">A plot of a(n)-2*n (conjectural)</a>
%F A316973 a(n) = |{ j : A316774(j) = n }|.
%e A316973 a(4) = 7 because A316774(j) = 4 for j in s = {4,7,12,13,36,49,55} and |s| = 7.
%Y A316973 Cf. A316774, A316905, A316984.
%K A316973 nonn,look
%O A316973 0,3
%A A316973 _Alois P. Heinz_, Jul 17 2018