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A005469 a(n)=1+a([ n/2 ]) a( ceiling ( n/2 ) ).
(Formerly M1398) 		+0
1
2, 5, 11, 26, 56, 122, 287, 677, 1457, 3137, 6833, 14885, 35015, 82370, 194300, 458330, 986390, 2122850, 4570610, 9840770, 21435122, 46689890, 101709206, 221563226 (list; graph; listen)
OFFSET

1,1
CROSSREFS

Adjacent sequences: A005466 A005467 A005468 this_sequence A005470 A005471 A005472

Sequence in context: A053429 A104237 A085945 this_sequence A026787 A064416 A006138

KEYWORD

nonn

AUTHOR

C. L. Mallows (colinm(AT)research.avayalabs.com)

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Last modified October 12 15:26 EDT 2008. Contains 144830 sequences.

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