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A158315 A158280(n)/7. 3
1, 3, 3, 3, 6, 3, 3, 9, 3, 3, 9, 3, 6, 10, 3, 3, 9, 9, 3, 9, 3, 3, 18, 3, 6, 9, 3, 9, 9, 3, 3, 18, 9, 3, 9, 3, 3, 18, 9, 3, 15, 3, 9, 9, 3, 9, 9, 9, 3, 18, 3, 3, 27, 3, 3, 9, 3, 9, 18, 9, 6, 9, 10, 3, 9, 3, 9, 30, 3, 3, 9, 9, 9, 18, 3, 3, 18, 9, 3, 9, 9, 3, 27, 3, 6, 18, 3, 18, 9, 3, 3, 9, 9, 9, 30, 3, 3, 27 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

A kind of core or backbone of A145511, A145501 and A145444.

LINKS

Table of n, a(n) for n=0..97.

CROSSREFS

Sequence in context: A141695 A100026 A100049 * A134059 A219915 A219217

Adjacent sequences:  A158312 A158313 A158314 * A158316 A158317 A158318

KEYWORD

nonn

AUTHOR

Paul Curtz, Mar 16 2009

EXTENSIONS

Edited and extended by R. J. Mathar, Apr 04 2009

STATUS

approved

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Last modified December 21 16:36 EST 2014. Contains 252324 sequences.