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 A128142 A128132 * A122432 (unsigned). 1
 1, 5, 2, 15, 8, 3, 34, 21, 11, 4, 65, 44, 27, 14, 5, 111, 80, 54, 33, 17, 6, 175, 132, 95, 64, 39, 20, 7, 260, 203, 153, 110, 74, 45, 23, 8, 369, 296, 231, 174, 125, 84, 51, 26, 9, 505, 414, 332, 259, 195, 140, 94, 57, 29, 10 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Row sums = A006325 starting (1, 7, 26, 70, 155, ...). Left border = A006003: (1, 5, 15, 34, 65, 111, ...). A128141 = A122432 * A128132. LINKS Table of n, a(n) for n=1..55. FORMULA A128132 * A122432 (unsigned); as infinite lower triangular matrices. EXAMPLE First few rows of the triangle: 1; 5, 2; 15, 8, 3; 34, 21, 11, 4; 65, 44, 27, 14, 5; 111, 80, 54, 33, 17, 6; 175, 132, 95, 64, 39, 20, 7; ... CROSSREFS Cf. A128132, A122432, A006325, A128141, A006003. Sequence in context: A341515 A191722 A191435 * A213550 A283242 A246209 Adjacent sequences: A128139 A128140 A128141 * A128143 A128144 A128145 KEYWORD nonn,tabl AUTHOR Gary W. Adamson, Feb 16 2007 STATUS approved

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Last modified May 24 05:24 EDT 2024. Contains 372772 sequences. (Running on oeis4.)