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 A292947 #8 Oct 07 2017 21:55:41 %S A292947 1,1,2,1,13,5,6,1,38,3,6,26,62,11,14,1,103,73,6,42,14,35,91,21,58,14, %T A292947 26,170,303,29,30,1,66,33,385,182,93,301,195,563,1093,41,22,355,38, %U A292947 118,83,22,1254,763,10,1043,78,53,498,282,238,133,71,129,665,22,1562,1,649,65,554,1081,614,69,1633,85,634,1398,74,269,626,70,1054,1285,1191,3 %N A292947 a(n) = A007947(A292270(n)). %H A292947 Antti Karttunen, <a href="/A292947/b292947.txt">Table of n, a(n) for n = 0..10000</a> %o A292947 (Scheme) (define (A292947 n) (A007947 (A292270 n))) %Y A292947 Cf. A007947, A292270, A293218, A293219. %Y A292947 Cf. A000225 (gives the positions of ones). %K A292947 nonn %O A292947 0,3 %A A292947 _Antti Karttunen_, Oct 06 2017