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A216720 Duplicate of A174074. 0
2, 6, 22, 109, 657, 4625, 37186, 336336, 3379058, 37328103 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

LINKS

Table of n, a(n) for n=3..12.

CROSSREFS

Sequence in context: A218531 A339280 A129535 * A174074 A290279 A014371

Adjacent sequences:  A216717 A216718 A216719 * A216721 A216722 A216723

KEYWORD

dead

STATUS

approved

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Last modified January 22 01:28 EST 2022. Contains 350481 sequences. (Running on oeis4.)