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A090408 Sum{k=0..n, C(4n+3,4k) }. 2
1, 36, 496, 8256, 130816, 2098176, 33550336, 536887296, 8589869056, 137439215616, 2199022206976, 35184376283136, 562949936644096, 9007199321849856, 144115187807420416, 2305843010287435776 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

CROSSREFS

Cf. A070775, A001025, A090407, A038503.

Sequence in context: A110693 A104671 A128986 * A183616 A008657 A134289

Adjacent sequences:  A090405 A090406 A090407 * A090409 A090410 A090411

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Nov 29 2003

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Last modified February 17 03:45 EST 2012. Contains 205978 sequences.