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A089023 Duplicate of A035610. 0
1, 4, 28, 232, 2092, 19864, 195352, 1970896, 20275660, 211823800, 2240795848 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..10.

CROSSREFS

Sequence in context: A220876 A152599 A199579 * A035610 A229652 A229651

Adjacent sequences:  A089020 A089021 A089022 * A089024 A089025 A089026

KEYWORD

dead

STATUS

approved

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Last modified December 14 11:52 EST 2018. Contains 318097 sequences. (Running on oeis4.)