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A081563 Second binomial transform of expansion of exp(2cosh(x)). 1
1, 2, 6, 20, 78, 332, 1566, 7940, 43518, 253532, 1573566, 10295540, 71069598, 513897932, 3893187486, 30741656420, 252979075518, 2161184079932, 19161309456126, 175782239098580, 1667967153565278, 16331180476591532 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

COMMENTS

Binomial transform of A081562.

FORMULA

E.g.f. exp(2x)exp(2cosh(x))/e^2 = exp(2cosh(x)+2x-2).

CROSSREFS

Cf. A000807.

Sequence in context: A150181 A150182 A098469 * A038393 A027221 A150183

Adjacent sequences:  A081560 A081561 A081562 * A081564 A081565 A081566

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Mar 22 2003

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Last modified February 17 16:49 EST 2012. Contains 206058 sequences.