id:A075535 - OEIS Search Results

Search: id:A075535

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a(1)=1, a(n) = sum( k=1,n-1, min(a(k),a(n-k)) ).

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1, 1, 2, 3, 4, 6, 8, 11, 14, 18, 22, 28, 34, 42, 50, 61, 72, 86, 100, 118, 136, 158, 180, 208, 236, 270, 304, 346, 388, 438, 488, 549, 610, 682, 754, 840, 926, 1026, 1126, 1244, 1362, 1498, 1634, 1792, 1950, 2130, 2310, 2518, 2726, 2962, 3198, 3468, 3738, 4042 (list; graph; listen)

	OFFSET	`1,3`
	FORMULA	`a(1)=a(2)=1; a(2n)=a(2n-1)+a(n); a(2n+1)=a(2n)+a(n); n>=3 a(n)=a(n-1)+a(floor(n/2))`
	PROGRAM	`(PARI) a(n)=if(n<3, 1, a(n-1)+a(floor(n/2)))`
	CROSSREFS	`Cf. A033485.` `Sequence in context: A056829 A071764 A059291 this_sequence A134953 A114829 A007279` `Adjacent sequences: A075532 A075533 A075534 this_sequence A075536 A075537 A075538`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Jan 11 2003`

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Last modified November 23 10:40 EST 2009. Contains 167421 sequences.

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