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A151516 Duplicate of A003104. 0
1, 1, 2, 4, 10, 24, 67, 182, 520, 1474, 4248, 12196 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..12.

CROSSREFS

Sequence in context: A239605 A000084 A057734 * A003104 A121186 A028506

Adjacent sequences:  A151513 A151514 A151515 * A151517 A151518 A151519

KEYWORD

dead

STATUS

approved

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Last modified November 18 12:21 EST 2017. Contains 294891 sequences.