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 A174715 Triangle read by rows, Q*M as infinite lower triangular matrices. Q = A001935 shifted down four times by columns, M = A174712. 4
 1, 1, 2, 3, 4, 1, 6, 1, 9, 2, 12, 3, 16, 4, 2, 22, 6, 2, 29, 9, 4, 38, 12, 6, 50, 16, 8, 3, 64, 22, 12, 3, 82, 29, 18, 6 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS Row sums = A000041, the partition numbers. Refer to comments in A174713. LINKS Table of n, a(n) for n=0..35. FORMULA As an irregular triangle generated from a product Q*M of infinite lower triangular matrices: Q = A001935 in every column (except column 0), shifted down four times from the previous column. M = A174712, the diagonalized variant of A000041 (the partition numbers as the right border, and the rest zeros.) EXAMPLE First few rows of the triangle = 1; 1; 2; 3; 4, 1; 6, 1; 9, 2; 12, 3; 16, 4, 2; 22, 6, 2; 29, 9, 4; 38, 12, 6; 50, 16, 8, 3; 64, 22, 12, 3; 82, 29, 18, 6; ... CROSSREFS Cf. A174712, A174712, A174713, A174714 Sequence in context: A065331 A066262 A195989 * A069817 A071439 A100941 Adjacent sequences: A174712 A174713 A174714 * A174716 A174717 A174718 KEYWORD nonn,tabf,uned AUTHOR Gary W. Adamson, Mar 27 2010 STATUS approved

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Last modified April 23 16:40 EDT 2024. Contains 371916 sequences. (Running on oeis4.)