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 A186345 #4 Mar 30 2012 18:57:18 %S A186345 1,4,6,9,11,14,16,18,21,23,26,28,31,33,35,38,40,43,45,47,50,52,55,57, %T A186345 60,62,64,67,69,72,74,76,79,81,84,86,89,91,93,96,98,101,103,105,108, %U A186345 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 %N A186345 Adjusted joint rank sequence of (f(i)) and (g(j)) with f(i) after g(j) when f(i)=g(j), where f and g are the pentagonal numbers and the octagonal numbers. Complement of A186344. %e A186345 First, write %e A186345 1..5...12....22..35..... (pentagonal) %e A186345 1....8....21........40.. (octagonal) %e A186345 Then replace each number by its rank, where ties are settled by ranking the pentagonal number after the octagonal: %e A186345 a=(2,3,5,7,8,10,12,13,15,....)=A186344 %e A186345 b=(1,4,6,9,11,14,16,19,21,...)=A186345. %t A186345 (See A186344.) %Y A186345 Cf. A186342, A186343, A186344. %K A186345 nonn %O A186345 1,2 %A A186345 _Clark Kimberling_, Feb 18 2011