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 A127371 Triangle, row sums = n, left column = d(n). 0
 1, 2, 0, 2, 1, 0, 3, 0, 1, 0, 2, 1, 1, 1, 0, 4, 1, 0, 0, 1, 0, 2, 1, 1, 1, 1, 1, 0, 4, 0, 2, 0, 1, 0, 1, 0, 3, 2, 0, 1, 1, 0, 1, 1, 0, 4, 1, 2, 1, 0, 0, 1, 0, 1, 0, 1, 0 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Row sums = n, left column = d(n), (A000005: 1, 2, 2, 3, 2, 4, 2,...) LINKS FORMULA A051731 * A054521, as infinite lower triangular matrices. Inverse Mobius transform of A054521. EXAMPLE First few rows of the triangle are: 1; 2, 0; 2, 1, 0; 3, 0, 1, 0; 2, 1, 1, 1, 0; 4, 1, 0, 0, 1, 0; 2, 1, 1, 1, 1, 1, 0; 4, 0, 2, 0, 1, 0, 1, 0; 3, 2, 0, 1, 1, 0, 1, 1, 0; ... CROSSREFS Cf. A051731, A000005, A054521. Sequence in context: A190436 A133696 A195050 * A036849 A097364 A254204 Adjacent sequences:  A127368 A127369 A127370 * A127372 A127373 A127374 KEYWORD nonn,tabl AUTHOR Gary W. Adamson, Jan 12 2007 STATUS approved

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Last modified May 31 00:53 EDT 2020. Contains 334747 sequences. (Running on oeis4.)