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A025166 E.g.f.: -exp(-x/(1-2*x))/(1-2*x). 3
-1, -1, -1, 7, 127, 1711, 23231, 334391, 5144063, 84149983, 1446872959, 25661798119, 454494403199, 7489030040207, 89680375568447, -759618144120809, -127049044802971649, -7480338932613448769, -369274690558092738817, -17262533154073740329017 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

COMMENTS

Polynomials in A021009 evaluated at 2.

LINKS

Vaclav Kotesovec, Table of n, a(n) for n = 0..400

FORMULA

Conjecture: a(n) +(-4*n+3)*a(n-1) +4*(n-1)^2*a(n-2)=0. - R. J. Mathar, Feb 05 2013

MATHEMATICA

Table[ -n! 2^n LaguerreL[ n, 1/2 ], {n, 0, 12} ]

CROSSREFS

Cf. A025167, A025168.

Sequence in context: A278791 A064754 A267249 * A241955 A139291 A274673

Adjacent sequences:  A025163 A025164 A025165 * A025167 A025168 A025169

KEYWORD

sign

AUTHOR

Wouter Meeussen

EXTENSIONS

Corrected and extended by Vladeta Jovovic, Jan 29 2003

STATUS

approved

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Last modified April 21 01:03 EDT 2019. Contains 322310 sequences. (Running on oeis4.)