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A017553 (12n+2)^9. 0
512, 20661046784, 5429503678976, 165216101262848, 1953125000000000, 13537086546263552, 66540410775079424, 257327417311663616, 833747762130149888, 2357947691000000000, 5987402799531080192 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..10.

Index entries for linear recurrences with constant coefficients, signature (10, -45, 120, -210, 252, -210, 120, -45, 10, -1).

MATHEMATICA

(12*Range[0, 20]+2)^9 (* or *) LinearRecurrence[{10, -45, 120, -210, 252, -210, 120, -45, 10, -1}, {512, 20661046784, 5429503678976, 165216101262848, 1953125000000000, 13537086546263552, 66540410775079424, 257327417311663616, 833747762130149888, 2357947691000000000}, 20] (* Harvey P. Dale, May 19 2021 *)

CROSSREFS

Sequence in context: A017193 A017301 A017421 * A087931 A044879 A060947

Adjacent sequences:  A017550 A017551 A017552 * A017554 A017555 A017556

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified December 3 21:17 EST 2021. Contains 349468 sequences. (Running on oeis4.)