A141713 - OEIS

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A141713

Column 0 of triangle A141712.

1, 1, 2, 6, 26, 162, 1454, 18854, 354258, 9671546, 384587782, 22323926270, 1895288347354, 235764308325666, 43040024112901598, 11547470030266126198, 4559235319260902237410, 2652214835190976783549066

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OFFSET

0,3

LINKS

Table of n, a(n) for n=0..17.

FORMULA

Equals column 1 of triangle A141712 when shifted left one place.

Equals column 0 of the matrix square of triangle A141712 - see A141715.

CROSSREFS

Cf. A141712, A141714, A141715.

Sequence in context: A103367 A047863 A180349 * A005272 A307082 A178089

Adjacent sequences: A141710 A141711 A141712 * A141714 A141715 A141716

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Jul 01 2008

STATUS

approved