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A027132 a(n) = diagonal sum of right justified array T given by A027113. 0
1, 2, 4, 12, 27, 70, 182, 477, 1269, 3413, 9249, 25255, 69389, 191680, 532026, 1482926, 4148949, 11647260, 32797042, 92608175, 262157690, 743845685, 2115093984, 6026041793, 17199956143, 49176678286, 140824260498, 403865784020 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

CROSSREFS

Sequence in context: A291406 A219752 A242536 * A148172 A148173 A148174

Adjacent sequences:  A027129 A027130 A027131 * A027133 A027134 A027135

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified November 29 13:17 EST 2021. Contains 349416 sequences. (Running on oeis4.)