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 A137587 Triangle read by rows: A051731 * A026794. 2
 1, 2, 1, 3, 0, 1, 5, 2, 0, 1, 6, 1, 0, 0, 1, 11, 3, 2, 0, 0, 1, 12, 2, 1, 0, 0, 0, 1, 20, 6, 1, 2, 0, 0, 0, 1, 25, 4, 3, 1, 0, 0, 0, 0, 1, 37, 9, 2, 1, 2, 0, 0, 0, 0, 1, 43, 8, 3, 1, 1, 0, 0, 0, 0, 0, 1, 70, 16, 6, 3, 1, 2, 0, 0, 0, 0, 0, 1 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS That is, regard A051731 and A026794 as lower triangular square matrices and multiply them, then take the lower triangle of the product, Left column = A083710 starting (1, 2, 3, 5, 6, 11, 12,...). Row sums = A047968. LINKS FORMULA Inverse mobius transform of the partition triangle, A026794 EXAMPLE First few rows of the triangle are: .1; .2, 1; .3, 0, 1; .5, 2, 0, 1; .6, 1, 0, 0, 1; .11, 3, 2, 0, 0, 1; .12, 2, 1, 0, 0, 0, 1; .20, 6, 1, 2, 0, 0, 0, 1; .25, 4, 3, 1, 0, 0, 0, 0, 1; .... CROSSREFS Cf. A026794, A051731, A083710, A047968. Sequence in context: A195665 A096798 A158902 * A168021 A137639 A239631 Adjacent sequences:  A137584 A137585 A137586 * A137588 A137589 A137590 KEYWORD nonn,tabl AUTHOR Gary W. Adamson, Jan 27 2008 EXTENSIONS Typo in 9th row corrected by M. F. Hasler, Jun 08 2009 STATUS approved

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Last modified December 17 00:41 EST 2018. Contains 318191 sequences. (Running on oeis4.)