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 A277711 #6 Oct 30 2016 13:46:41 %S A277711 0,1,2,3,4,9,6,7,8,81,18,23,12,17,14,15,16,153,162,47,36,49,46,87,24, %T A277711 73,34,159,28,33,30,31,32,177,306,95,324,97,94,303,72,137,98,111,92, %U A277711 297,174,175,48,145,146,135,68,1257,318,295,56,321,66,143,60,65,62,63,64,273,354,191,612,193,190,1119,648,265,194,1335,188,1233,606 %N A277711 a(n) = position of the first occurrence of n in A264977. %H A277711 Antti Karttunen, <a href="/A277711/b277711.txt">Table of n, a(n) for n = 0..1024</a> %o A277711 (Scheme) (define (A277711 n) (let loop ((k 0)) (if (= (A264977 k) n) k (loop (+ 1 k))))) ;; Very crude. %Y A277711 Cf. A264977. %Y A277711 Leftmost column of A277710. %Y A277711 Fixed points: A023758. %K A277711 nonn %O A277711 0,3 %A A277711 _Antti Karttunen_, Oct 29 2016