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A339029 Expansion of (1 + 4*x - 20*x^2 + 8*x^3 + 33*x^4 - 4*x^5 - 33*x^6)/(1 - 2*x)^4. 1
1, 12, 52, 168, 497, 1412, 3879, 10360, 27016, 69024, 173264, 428288, 1044480, 2516992, 6001408, 14174208, 33191936, 77127680, 177967104, 408027136, 930021376, 2108424192, 4756275200, 10680270848, 23880794112, 53185871872, 118016180224, 260969594880, 575223627776 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..28.

FORMULA

a(n) = 2^(n-7)*(588 + 367*n + 84*n^2 + 9*n^3) for n >= 3.

MAPLE

gf := (1 + 4*x - 20*x^2 + 8*x^3 + 33*x^4 - 4*x^5 - 33*x^6)/(1 - 2*x)^4:

ser := series(gf, x, 32): seq(coeff(ser, x, n), n = 0..28);

CROSSREFS

Cf. A339252 (k=2), A339254 (k=3), A333650.

Sequence in context: A325379 A054410 A185355 * A297757 A223249 A195544

Adjacent sequences:  A339026 A339027 A339028 * A339030 A339031 A339032

KEYWORD

nonn

AUTHOR

Peter Luschny, Dec 01 2020

STATUS

approved

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Last modified December 2 11:34 EST 2021. Contains 349440 sequences. (Running on oeis4.)