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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.

A141450 Upper right triangle of the number of m's in all partitions of n.

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%I A141450 #5 May 01 2012 14:22:51
%S A141450 1,1,2,1,1,4,1,1,3,7,1,1,2,4,12,1,1,2,4,8,19,1,1,2,3,6,11,30,1,1,2,3,
%T A141450 6,9,19,45,1,1,2,3,5,8,15,26,67,1,1,2,3,5,8,13,21,41,97,1,1,2,3,5,7,
%U A141450 12,18,31,56,139,1,1,2,3,5,7,12,17,28,45,83,195,1,1,2,3,5,7,11,16,25,38,63
%N A141450 Upper right triangle of the number of m's in all partitions of n.
%C A141450 The "last" column read from the bottom is A000041.
%C A141450 Mirror of triangle A066633. - _Omar E. Pol_, May 01 2012
%e A141450 A000070: 1, 2, 4, 7, 12, 19, 30, 45, 67, 97, 139, 195, 272, 373, 508, ...,
%e A141450 A024786: 0, 1, 1, 3, 4, 8, 11, 19, 26, 41, 56, 83, 112, 160, 213, ...,
%e A141450 A024787: 0, 0, 1, 1, 2, 4, 6, 9, 15, 21, 31, 45, 63, 87, 122, ...,
%e A141450 A024788: 0, 0, 0, 1, 1, 2, 3, 6, 8, 13, 18, 28, 38, 55, 74, ...,
%e A141450 A024789: 0, 0, 0, 0, 1, 1, 2, 3, 5, 8, 12, 17, 25, 35, 50, ...,
%e A141450 A024790: 0, 0, 0, 0, 0, 1, 1, 2, 3, 5, 7, 12, 16, 24, 33, ...,
%e A141450 A024791: 0, 0, 0, 0, 0, 0, 1, 1, 2, 3, 5, 7, 11, 16, 23, ...,
%e A141450 A024792: 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 3, 5, 7, 11, 15, ...,
%e A141450 A024793: 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 3, 5, 7, 11, ...,
%e A141450 A024794: 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 3, 5, 7, ...
%t A141450 (* First do ) Needs["Combinatorica`"] (* then *) f[n_, m_] := Count[Flatten@ Partitions@ n, m]; Table[ f[n, m], {n, 13}, {m, n, 1, -1}]
%Y A141450 Cf. A000041, A000070, A024786, A024787, A024788, A024789, A024790, A024791, A024792, A024793, A024794.
%K A141450 nonn,tabl
%O A141450 1,3
%A A141450 _Robert G. Wilson v_, Aug 07 2008