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A028350 Expansion of -1/x + 6*3F2( 5/6, 1, 7/6; 3/2, 2; 108*x). 1
-1, 6, 210, 12012, 831402, 63740820, 5209363380, 444799488600, 39209074920090, 3541117629057540, 325969196485349340, 30471769822097981160, 2884881686418189303300, 276043232874562618320072 (list; graph; refs; listen; history; text; internal format)
OFFSET

-1,2

LINKS

G. C. Greubel, Table of n, a(n) for n = -1..250

MAPLE

a := proc(n) option remember; if n = -1 then -1 else 6*(6*n - 1)*(6*n + 1)*a(n - 1)/((n + 1)*(2*n + 1)) fi; end;

MATHEMATICA

nxt[{n_, a_}]:={n+1, (6*a*(5+6*n)*(7+6*n))/((2+n)*(3+2*n))}; Join[ {-1}, Transpose[NestList[nxt, {0, 6}, 15]][[2]]] (* Harvey P. Dale, May 10 2013 *)

CROSSREFS

Sequence in context: A183252 A183287 A087639 * A238685 A099788 A126676

Adjacent sequences:  A028347 A028348 A028349 * A028351 A028352 A028353

KEYWORD

sign

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified March 5 15:52 EST 2021. Contains 341825 sequences. (Running on oeis4.)