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A026686 T(2n-1,n-2), T given by A026681. 0
1, 9, 37, 237, 913, 5506, 21113, 124845, 480515, 2818051, 10898715, 63665402, 247327912, 1441838546, 5623080622, 32744927553, 128128256975, 745693719711, 2926139332637, 17024729505077, 66969147934417, 389584877937332 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,2

LINKS

Table of n, a(n) for n=2..23.

CROSSREFS

Sequence in context: A183327 A199894 A232258 * A076174 A117085 A120780

Adjacent sequences:  A026683 A026684 A026685 * A026687 A026688 A026689

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified May 27 03:13 EDT 2022. Contains 354093 sequences. (Running on oeis4.)