A088462 - OEIS

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A088462

a(1)=1, a(n)=ceiling((n-a(a(n-1)))/2).

1, 1, 1, 2, 2, 3, 3, 4, 4, 4, 5, 5, 6, 6, 6, 7, 7, 8, 8, 8, 9, 9, 10, 10, 11, 11, 11, 12, 12, 13, 13, 13, 14, 14, 15, 15, 16, 16, 16, 17, 17, 18, 18, 18, 19, 19, 20, 20, 21, 21, 21, 22, 22, 23, 23, 23, 24, 24, 25, 25, 25, 26, 26, 27, 27, 28, 28, 28, 29, 29, 30, 30, 30, 31, 31, 32, 32 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,4`
	COMMENTS	`Partial sums of A004641. [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Dec 05 2009]` `This sequence generates A004641; see comment at A004641. [From Clark Kimberling, May 25 2011]`
	LINKS	`R. Zumkeller, Table of n, a(n) for n = 1..10000 [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Dec 05 2009]`
	FORMULA	`a(n)=floor((sqrt(2)-1)*n+1/sqrt(2))`
	CROSSREFS	`Cf. A005206.` `Sequence in context: A060021 A000006 A061017 * A189574 A093337 A176044` `Adjacent sequences: A088459 A088460 A088461 * A088463 A088464 A088465`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Nov 12 2003`

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Last modified February 15 10:28 EST 2012. Contains 205763 sequences.