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A219645 Greatest inverse of A219642; a(n) = maximal i such that A219642(i) = n. 8
0, 1, 2, 4, 6, 7, 9, 12, 14, 17, 20, 22, 25, 28, 31, 33, 35, 38, 41, 44, 46, 49, 53, 54, 56, 59, 62, 65, 67, 70, 74, 77, 80, 83, 88, 90, 93, 96, 99, 101, 104, 108, 111, 114, 117, 122, 125, 129, 133, 137, 142, 143, 145, 148, 151, 154, 156, 159, 163, 166, 169 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

A. Karttunen, Table of n, a(n) for n = 0..10000

FORMULA

a(n) = A219643(n)+A219644(n)-1.

PROG

(Scheme with Antti Karttunen's Intseq-library, three different variants):

(define A219645 (PARTIALSUMS 1 0 (compose-funs A219644 1+)))

(define A219645v2 (compose-funs -1+ (LEAST-I-WITH-FUN-I-EQ-N 0 0 A219642) 1+)) ;; Slow.

(define (A219645v3 n) (+ (A219643 n) (A219644 n) -1))

CROSSREFS

Cf. A219643 for the least inverse. A219644 gives the first differences.

This sequence is based on Fibonacci number system (Zeckendorf expansion): A014417. Analogous sequence for binary system: A173601, for factorial number system: A219655.

Sequence in context: A157202 A282896 A141437 * A186708 A227697 A097457

Adjacent sequences:  A219642 A219643 A219644 * A219646 A219647 A219648

KEYWORD

nonn

AUTHOR

Antti Karttunen, Nov 24 2012

STATUS

approved

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Last modified June 20 00:47 EDT 2019. Contains 324223 sequences. (Running on oeis4.)