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 A151759 G.f.: Theta^3, where Theta = Sum_{k>=0} x^(2^k). 5
 0, 0, 0, 1, 3, 3, 4, 6, 3, 3, 6, 6, 4, 6, 6, 0, 3, 3, 6, 6, 6, 6, 6, 0, 4, 6, 6, 0, 6, 0, 0, 0, 3, 3, 6, 6, 6, 6, 6, 0, 6, 6, 6, 0, 6, 0, 0, 0, 4, 6, 6, 0, 6, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 3, 3, 6, 6, 6, 6, 6, 0, 6, 6, 6, 0, 6, 0, 0, 0, 6, 6, 6, 0, 6, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 4, 6, 6, 0, 6, 0, 0, 0, 6 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,5 COMMENTS Number of ways to write n as an ordered sum of 3 powers of 2. - Ilya Gutkovskiy, Feb 02 2021 LINKS MAPLE b:= proc(n, t) option remember; `if`(n=0, `if`(t=0, 1, 0),       `if`(t<1, 0, add(b(n-2^j, t-1), j=0..ilog2(n))))     end: a:= n-> b(n, 3): seq(a(n), n=0..104);  # Alois P. Heinz, Feb 02 2021 CROSSREFS Cf. A151758. Sequence in context: A043551 A162888 A337402 * A008443 A196456 A196485 Adjacent sequences:  A151756 A151757 A151758 * A151760 A151761 A151762 KEYWORD nonn AUTHOR N. J. A. Sloane, Jun 22 2009 STATUS approved

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Last modified June 25 10:28 EDT 2021. Contains 345453 sequences. (Running on oeis4.)