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A023812 Duplicate of A062813. 0
0, 2, 21, 228, 2930, 44790, 800667, 16434824, 381367044, 9876543210 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

CROSSREFS

Sequence in context: A106412 A058476 A099748 * A062813 A024231 A069717

Adjacent sequences:  A023809 A023810 A023811 * A023813 A023814 A023815

KEYWORD

dead

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Last modified February 17 16:13 EST 2012. Contains 206050 sequences.