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A115086 Column 0 of triangle A115085. 5
1, 1, 3, 12, 58, 321, 1963, 13053, 92946, 702864, 5599204, 46746501, 407019340, 3682922657, 34519445611, 334288656446, 3336972646500, 34270606413428, 361466138304372, 3909661505975148, 43305438098350844, 490632571238216052 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..21.

CROSSREFS

Cf. A115085, A115087 (column 1), A115088 (column 2), A115089 (row sums); A115081.

Sequence in context: A163047 A291488 A090363 * A258173 A196708 A184511

Adjacent sequences:  A115083 A115084 A115085 * A115087 A115088 A115089

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Jan 13 2006

STATUS

approved

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Last modified August 4 21:32 EDT 2021. Contains 346455 sequences. (Running on oeis4.)