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A100431 Bisection of A002417. 0
8, 80, 336, 960, 2200, 4368, 7840, 13056, 20520, 30800, 44528, 62400, 85176, 113680, 148800, 191488, 242760, 303696, 375440, 459200, 556248, 667920, 795616, 940800, 1105000, 1289808, 1496880, 1727936, 1984760, 2269200, 2583168, 2928640, 3307656, 3722320 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..33.

FORMULA

(4/3) (2n^4+11n^3+22n^2+19n+6). - Ralf Stephan, May 15 2007

MATHEMATICA

Table[4*(2*n^4 + 3*n^3 + n^2)/3, {n, 60}] (* From Vladimir Joseph Stephan Orlovsky, Jul 07 2011 *)

CROSSREFS

Sequence in context: A188149 A164755 A050799 * A173116 A102698 A190019

Adjacent sequences:  A100428 A100429 A100430 * A100432 A100433 A100434

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Nov 20 2004

EXTENSIONS

More terms from Hugo Pfoertner, Nov 26 2004

STATUS

approved

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Last modified May 23 03:06 EDT 2013. Contains 225585 sequences.