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A026699 T(n,0) + T(n,1) + ... + T(n,n), T given by A026692. 0
1, 2, 4, 8, 18, 42, 92, 194, 430, 982, 2158, 4608, 10198, 23116, 50840, 109178, 241472, 545148, 1199474, 2584664, 5714476, 12867300, 28319264, 61166388, 135200076, 303859934, 668886256, 1447227562, 3198315058, 7177895844 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..29.

CROSSREFS

Sequence in context: A151381 A306200 A057151 * A182780 A078678 A261492

Adjacent sequences:  A026696 A026697 A026698 * A026700 A026701 A026702

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified September 27 17:05 EDT 2021. Contains 347693 sequences. (Running on oeis4.)