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 A187943 #14 Apr 11 2014 00:22:16 %S A187943 1,3,2,5,15,9,6,30,20,17,63,57,51,45,35,21,98,92,66,72,38,110,103,109, %T A187943 25,31,10,16,2,126,36,169,163,157,151,145,139,45,35,101,182,21,32,133, %U A187943 187,105,123,193,23,29,8,14,3,2,75,284,278,272,266,260,254,248,226,232,100,260,254,248,226,232,306,138,144,150,156,162,168,34,65,117,228,234 %N A187943 A057167(A005132(A187922(n) - 1) - A187922(n)). %C A187943 Let x = A187922(n) and r = A005132(x-1) - x, by definition of A187922: r > 0 and r occurs earlier in Recamán's sequence: a(n) = A057167(r) or r = A005132(a(n)), hence A005132(x) <> r but A005132(x) = A005132(x-1) - x. %H A187943 Reinhard Zumkeller, <a href="/A187943/b187943.txt">Table of n, a(n) for n = 1..10000</a> %H A187943 <a href="/index/Rea#Recaman">Index entries for sequences related to Recamán's sequence</a> %e A187943 n = 5: x = A187922(5) = 19, r = A005132(19-1) - 19 = 43 - 19 = 24 = A005132(15): a(5) = 15. %Y A187943 Cf. A057165, A057167. %K A187943 nonn,look %O A187943 1,2 %A A187943 _Reinhard Zumkeller_, Mar 17 2011