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 A141155 #4 Mar 03 2013 14:36:06 %S A141155 1,2,1,4,3,2,7,6,5,3,12,11,10,8,5,19,18,17,15,12,7,30,29,28,26,23,18, %T A141155 11,45,44,43,41,38,33,26,15,67,66,65,63,60,55,48,37,22,97,96,95,93,90, %U A141155 85,78,67,52,30 %N A141155 Triangle read by rows, A140207 * A000012. %C A141155 Right border = the partition numbers, A000041. %F A141155 A140207 * A000012 as infinite lower triangular matrices. %e A141155 First few rows of the triangle are: %e A141155 1; %e A141155 2, 1; %e A141155 4, 3, 2; %e A141155 7, 6, 5, 3; %e A141155 12, 11, 10, 8, 5; %e A141155 19, 18, 17, 15, 12, 7; %e A141155 30, 29, 28, 26, 23, 18, 11; %e A141155 45, 44, 43, 41, 38, 33, 26, 15; %e A141155 ... %e A141155 n-th row of the triangle = partial sums n-th row terms of triangle A140207 starting from the right. Example: row 3 = (7, 6, 5, 3), since row 3 of triangle A140207 = (1, 1, 2, 3). %Y A141155 Cf. A000041, A000070 (first column), A141156 (row sums), A140207. %K A141155 nonn,tabl %O A141155 0,2 %A A141155 _Gary W. Adamson_ & _Roger L. Bagula_, Jun 12 2008