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A151837 A151836(n)/4. 3
1, 1, 3, 1, 3, 3, 7, 1, 3, 3, 7, 5, 7, 9, 17, 1, 3, 3, 7, 5, 7, 9, 17, 9, 7, 9, 17, 17, 19 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,3

LINKS

Table of n, a(n) for n=2..30.

CROSSREFS

Sequence in context: A038573 A246591 A173465 * A163381 A327190 A160123

Adjacent sequences:  A151834 A151835 A151836 * A151838 A151839 A151840

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Jul 13 2009

STATUS

approved

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Last modified October 14 04:44 EDT 2019. Contains 327995 sequences. (Running on oeis4.)