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A167549 The sixth row of the ED1 array A167546. 3
120, 1440, 6720, 21504, 55296, 122880, 245640, 452880, 783144, 1285536, 2021040, 3063840, 4502640, 6441984, 9003576, 12327600, 16574040, 21924000, 28581024, 36772416, 46750560, 58794240, 73209960, 90333264, 110530056 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..1000

Index entries for linear recurrences with constant coefficients, signature (6, -15, 20, -15, 6, -1).

FORMULA

a(n) = 11*n^5 + 0*n^4 + 209*n^3 - 264*n^2 + 308*n - 144.

G.f.: (120+720*z-120*z^2+384*z^3+72*z^4+144*z^5)/(1-z)^6.

a(n) = 6*a(n-1) - 15*a(n-2) + 20*a(n-3) - 15*a(n-4) + 6*a(n-5) - a(n-6). - G. C. Greubel, Jun 15 2016

MATHEMATICA

Table[11*n^5 + 209*n^3 - 264*n^2 + 308*n - 144, {n, 1, 100}] (* or *) Linearrecurrence[{6, -15, 20, -15, 6, -1}, {120, 1440, 6720, 21504, 55296, 122880}, 100] (* G. C. Greubel, Jun 15 2016 *)

CROSSREFS

Cf. A167546.

Sequence in context: A265091 A259519 A235231 * A052776 A052770 A175112

Adjacent sequences:  A167546 A167547 A167548 * A167550 A167551 A167552

KEYWORD

easy,nonn

AUTHOR

Johannes W. Meijer, Nov 10 2009

STATUS

approved

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Last modified January 22 19:39 EST 2020. Contains 331153 sequences. (Running on oeis4.)