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 A127372 Triangle read by rows: A127170 * A054521 as infinite lower triangular matrices. 0
 1, 3, 0, 3, 1, 0, 6, 0, 1, 0, 3, 1, 1, 1, 0, 9, 2, 0, 0, 1, 0, 3, 1, 1, 1, 1, 1, 0, 10, 0, 3, 0, 1, 0, 1, 0, 6, 3, 0, 1, 1, 0, 1, 1, 0, 9, 2, 3, 2, 0, 0, 1, 0, 1, 0 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Left column = A007425, (tau_3(n)): 1, 3, 3, 6, 3, 9... Row sums = sigma(n), A000203: 1, 3, 4, 7, 6, 12,... LINKS EXAMPLE First few rows of the triangle are: 1; 3, 0; 3, 1, 0; 6, 0, 1, 0; 3, 1, 1, 1, 0; 9, 2, 0, 0, 1, 0; 3, 1, 1, 1, 1, 1, 0; 10, 0, 3, 0, 1, 0, 1, 0; ... CROSSREFS Cf. A127170, A054521, A000203, A007425. Sequence in context: A138123 A328382 A211868 * A051171 A300904 A307807 Adjacent sequences:  A127369 A127370 A127371 * A127373 A127374 A127375 KEYWORD nonn,tabl AUTHOR Gary W. Adamson, Jan 12 2007 EXTENSIONS Edited by N. J. A. Sloane, Jul 11 2008 STATUS approved

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Last modified May 26 18:08 EDT 2020. Contains 334630 sequences. (Running on oeis4.)