cp's OEIS Frontend

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.

A186225 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 triangular numbers and pentagonal numbers. Complement of A186226.

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%I A186225 #4 Mar 30 2012 18:57:18
%S A186225 2,3,5,6,8,9,11,13,14,16,17,19,20,22,24,25,27,28,30,32,33,35,36,38,39,
%T A186225 41,43,44,46,47,49,50,52,54,55,57,58,60,61,63,65,66,68,69,71,73,74,76,
%U A186225 77,79,80,82,84,85,87,88,90,91,93,95,96,98,99,101,102,104,106,107,109,110,112,114,115,117,118,120,121,123,125,126,128,129,131,132,134,136,137,139,140,142,143,145,147,148,150,151,153,155,156,158
%N A186225 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 triangular numbers and pentagonal numbers.  Complement of A186226.
%e A186225 See A186223.
%t A186225 (* Program for adjusted rank sequences as described at A186219 *)
%t A186225 d=-1/2; u=1/2; v=1/2; w=0; x=3/2; y=-1/2; z=0; (* triangular & pentagonal *)
%t A186225 h[n_]:=-y+(4x(u*n^2+v*n+w-z-d)+y^2)^(1/2);
%t A186225 a[n_]:=n+Floor[h[n]/(2x)];
%t A186225 k[n_]:=-v+(4u(x*n^2+y*n+z-w+d)+v^2)^(1/2);
%t A186225 b[n_]:=n+Floor[k[n]/(2u)];
%t A186225 Table[a[n],{n,1,100}]  (* A186225 *)
%t A186225 Table[b[n],{n,1,100}]  (* A186226 *)
%Y A186225 A186219, A186223, A186224, A186226.
%K A186225 nonn
%O A186225 1,1
%A A186225 _Clark Kimberling_, Feb 15 2011