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A228773
Duplicate of A034889.
0
0, 1, 1, 3, 10, 61, 564, 7593, 123874, 2262877, 44190279, 904777809, 19207129217
OFFSET
1,4
CROSSREFS
Sequence in context: A013565 A156075 A330624 * A034889 A260969 A305853
KEYWORD
dead
STATUS
approved