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 A186343 #4 Mar 30 2012 18:57:18 %S A186343 2,4,6,9,11,14,16,19,21,23,26,28,31,33,35,38,40,43,45,47,50,52,55,57, %T A186343 60,62,64,67,69,72,74,76,79,81,84,86,89,91,93,96,98,101,103,105,108, %U A186343 110,113,115,117,120,122,125,127,130,132,134,137,139,142,144,146,149,151,154,156,159,161,163,166,168,171,173,175,178,180,183,185,188,190,192,195,197,200,202,204,207 %N A186343 Adjusted joint rank sequence of (f(i)) and (g(j)) with f(i) before g(j) when f(i)=g(j), where f and g are the pentagonal numbers and the octagonal numbers. Complement of A186342. %e A186343 First, write %e A186343 1..5...12....22..35..... (pentagonal) %e A186343 1....8....21........40.. (octagonal) %e A186343 Then replace each number by its rank, where ties are settled by ranking the pentagonal number before the octagonal: %e A186343 a=(1,3,5,7,8,10,12,13,15,...)=A186342 %e A186343 b=(2,4,6,9,11,14,16,19,21,...)=A186343. %t A186343 (See A186342.) %Y A186343 Cf. A186342, A186344, A186345. %K A186343 nonn %O A186343 1,1 %A A186343 _Clark Kimberling_, Feb 18 2011