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A136304 Transform of A000108 by the T_{0,0} transformation (see link). 3
1, 2, 5, 14, 40, 116, 344, 1047, 3273, 10500, 34503, 115838, 396244, 1377221, 4851665, 17285662, 62173297, 225424527, 822919439, 3021713140, 11151957809, 41340655956, 153853915410, 574593145517, 2152679745351, 8087904580883, 30466311814036, 115036597198845 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..27.

Richard Choulet, Curtz-like transformation.

FORMULA

G.f.: f(z) = 1+2*z+... = ((1-z)^2*(1-sqrt(1-4*z)))/(2*z*(1-3*z+2*z^2-z^3)).

Conjecture: (n+1)*a(n) +(-8*n+1)*a(n-1) +3*(7*n-8)*a(n-2) +(-23*n+49)*a(n-3) +(13*n-32)*a(n-4) +2*(-2*n+7)*a(n-5)=0. - R. J. Mathar, Feb 29 2016

CROSSREFS

Sequence in context: A293346 A273900 A126220 * A190254 A075496 A114177

Adjacent sequences:  A136301 A136302 A136303 * A136305 A136306 A136307

KEYWORD

nonn

AUTHOR

Richard Choulet, Mar 22 2008

STATUS

approved

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Last modified July 20 05:56 EDT 2019. Contains 325168 sequences. (Running on oeis4.)