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A169763 Duplicate of A004035. 0
1, 1, 1, 3, 8, 18, 36, 66, 80 (list; graph; refs; listen; history; text; internal format)
OFFSET

4,4

LINKS

Table of n, a(n) for n=4..12.

CROSSREFS

Sequence in context: A055278 A036628 A004035 * A227161 A241080 A000234

Adjacent sequences:  A169760 A169761 A169762 * A169764 A169765 A169766

KEYWORD

dead

STATUS

approved

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Last modified May 27 19:04 EDT 2017. Contains 287207 sequences.