id:A005469 - OEIS Search Results

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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`
	REFERENCES	`N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).`
	CROSSREFS	`Sequence in context: A053429 A104237 A085945 this_sequence A159929 A026787 A064416` `Adjacent sequences: A005466 A005467 A005468 this_sequence A005470 A005471 A005472`
	KEYWORD	`nonn`
	AUTHOR	`C. L. Mallows (colinm(AT)research.avayalabs.com)`

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.

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