A235043 - OEIS

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A235043

Partial sums of the characteristic function of A091209.

0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,18`
	COMMENTS	`Note that this also works as an inverse function of A091209 in a sense that a(A091209(n)) = n for all n>=1.`
	LINKS	`Antti Karttunen, Table of n, a(n) for n = 0..10007`
	PROG	`(Scheme)` `(define (A235043 n) (if (zero? n) n (+ (A235043 (- n 1)) (+ (* (A010051 n) (A091247 n))))))`
	CROSSREFS	`Used to compute A235041. Cf. A010051, A091247, A235044.` `Sequence in context: A067099 A098429 A132090 * A071538 A321017 A138194` `Adjacent sequences: A235040 A235041 A235042 * A235044 A235045 A235046`
	KEYWORD	`nonn`
	AUTHOR	`Antti Karttunen, Jan 02 2014`
	STATUS	`approved`

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Last modified February 26 14:53 EST 2023. Contains 360651 sequences. (Running on oeis4.)