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A132846 Column 0 of triangle A132845. 5
1, 1, 3, 13, 73, 466, 3309, 25425, 209717, 1837168, 16995545, 164906160, 1671977735, 17635855420, 193014602116, 2185071349740, 25536219128057, 307379906553394, 3804874686396912, 48350298542927709, 629940434070025851 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..20.

FORMULA

a(n) = A132844(2n,0) = A132844(2n+1,0).

PROG

(PARI)

CROSSREFS

Cf. triangles: A132845, A132844; other columns: A132847, A132848, A132849.

Sequence in context: A063512 A199317 A205776 * A293196 A193931 A293197

Adjacent sequences:  A132843 A132844 A132845 * A132847 A132848 A132849

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Sep 17 2007

STATUS

approved

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Last modified November 28 03:29 EST 2021. Contains 349400 sequences. (Running on oeis4.)