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 A275728 #12 Aug 12 2016 06:19:30 %S A275728 0,1,2,3,1,2,4,5,6,7,5,6,2,3,4,5,3,4,1,2,3,4,2,3,8,9,10,11,9,10,12,13, %T A275728 14,15,13,14,10,11,12,13,11,12,9,10,11,12,10,11,4,5,6,7,5,6,8,9,10,11, %U A275728 9,10,6,7,8,9,7,8,5,6,7,8,6,7,2,3,4,5,3,4,6,7,8,9,7,8,4,5,6,7,5,6,3,4,5,6,4,5,1,2,3,4 %N A275728 a(0) = 0, for n >= 1, a(n) = A275736(n) + a(A257684(n)); a(n) = A048675(A275734(n)). %C A275728 See graph: pine trees on a snowy mountain. - _N. J. A. Sloane_, Aug 12 2016 %H A275728 Antti Karttunen, <a href="/A275728/b275728.txt">Table of n, a(n) for n = 0..40320</a> %H A275728 <a href="/index/Fa#facbase">Index entries for sequences related to factorial base representation</a> %F A275728 a(0) = 0, for n >= 1, a(n) = A275736(n) + a(A257684(n)). %F A275728 a(n) = A048675(A275734(n)). %o A275728 (Scheme, with memoization-macro definec) %o A275728 (definec (A275728 n) (if (zero? n) n (+ (A275736 n) (A275728 (A257684 n))))) %o A275728 (define (A275728 n) (A048675 (A275734 n))) %Y A275728 Cf. A048675, A257684, A275734, A275736. %Y A275728 Cf. also A275727, A275808. %K A275728 nonn,base,look %O A275728 0,3 %A A275728 _Antti Karttunen_, Aug 09 2016