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 A316077 Sequence shifts left five places under Weigh transform with a(n) = signum(n) for n<5. 3
 0, 1, 1, 1, 1, 1, 1, 1, 2, 2, 3, 4, 5, 7, 10, 14, 20, 28, 40, 58, 84, 121, 176, 257, 376, 552, 812, 1196, 1767, 2615, 3877, 5757, 8562, 12751, 19018, 28400, 42461, 63554, 95234, 142845, 214473, 322310, 484793, 729797, 1099509, 1657761, 2501299, 3776681 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,9 LINKS Alois P. Heinz, Table of n, a(n) for n = 0..2000 FORMULA G.f.: x + x^2 + x^3 + x^4 + x^5 * Product_{n>=1} (1 + x^n)^a(n). - Ilya Gutkovskiy, May 09 2019 MAPLE b:= proc(n, i) option remember; `if`(n=0, 1, `if`(i<1, 0, add(binomial(a(i), j)*b(n-i*j, i-1), j=0..n/i))) end: a:= n-> (k-> `if`(n

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Last modified September 29 04:08 EDT 2023. Contains 365752 sequences. (Running on oeis4.)