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 A168534 Triangle read by rows, A168532 * A000012; as infinite lower triangular matrices. 2
 1, 2, 1, 3, 1, 1, 5, 2, 1, 1, 7, 1, 1, 1, 1, 11, 4, 2, 1, 1, 1, 15, 1, 1, 1, 1, 1, 1, 22, 5, 2, 2, 1, 1, 1, 1, 30, 3, 3, 1, 1, 1, 1, 1, 1, 42, 8, 2, 2, 2, 1, 1, 1, 1, 1, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 77, 14, 7, 4, 2, 2, 1, 1, 1, 1, 1, 1 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Row sums = A078392: (1, 3, 5, 9, 11, 20, 21,...). Triangle A168533 = A000012 * A168532 Left border = the partition numbers, A000041 starting with offset 1. LINKS FORMULA Triangle read by rows, A168532 * A000012; where A000012 = an infinite lower triangular matrix with all 1's. The operation takes partial row sums starting from the right of each row. EXAMPLE First few rows of the triangle = 1; 2, 1; 3, 1, 1; 5, 2, 1, 1; 7, 1, 1, 1, 1; 11, 4, 2, 1, 1, 1; 15, 1, 1, 1, 1, 1, 1; 22, 5, 2, 2, 1, 1, 1, 1; 30, 3, 3, 1, 1, 1, 1, 1, 1; 42, 8, 2, 2, 2, 1, 1, 1, 1, 1; 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1; 77, 14, 7, 4, 2, 2, 1, 1, 1, 1, 1, 1; 101, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1; 135, 16, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1; 176, 9, 9, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 231, 22, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1; ... CROSSREFS Cf. A168532, A168533, A000041, A078392 Sequence in context: A178623 A210765 A160183 * A026807 A338440 A179045 Adjacent sequences:  A168531 A168532 A168533 * A168535 A168536 A168537 KEYWORD nonn,tabl AUTHOR Gary W. Adamson, Nov 28 2009 STATUS approved

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Last modified November 30 10:56 EST 2021. Contains 349419 sequences. (Running on oeis4.)