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A027312 a(n) = Sum_{k=0..n+2} (k+1) * A026323(n, k). 0
1, 6, 27, 101, 357, 1215, 4043, 13239, 42849, 137446, 437775, 1386369, 4369661, 13717842, 42918903, 133887207, 416601657, 1293386940, 4007492727, 12395015289, 38276340453, 118029405441, 363483388935, 1118056644207, 3435356994857, 10545018480000, 32338826982603 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..26.

CROSSREFS

Sequence in context: A009061 A012320 A097553 * A057222 A124641 A169793

Adjacent sequences:  A027309 A027310 A027311 * A027313 A027314 A027315

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

Title corrected and more terms from Sean A. Irvine, Oct 27 2019

STATUS

approved

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Last modified January 25 09:45 EST 2022. Contains 350565 sequences. (Running on oeis4.)