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A026548 a(n) = T(n,0) + T(n,1) + ... + T(n,n), T given by A026536. 1
1, 1, 4, 7, 22, 42, 127, 249, 746, 1476, 4414, 8766, 26215, 52158, 156041, 310799, 930194, 1854072, 5550976, 11070000, 33152042, 66139316, 198115526, 395368914, 1184511095, 2364457980, 7084871668, 14145343660, 42390336619 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..28.

CROSSREFS

Cf. A026536, A026550.

Sequence in context: A119561 A228015 A145931 * A100098 A127361 A128533

Adjacent sequences:  A026545 A026546 A026547 * A026549 A026550 A026551

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

Missing a(0)=1 inserted by Sean A. Irvine, Oct 06 2019

STATUS

approved

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Last modified September 18 16:05 EDT 2020. Contains 337169 sequences. (Running on oeis4.)