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A266122 a(n) = index of n in A266121 or 0 if n is not present in that sequence. 3
1, 5, 2, 4, 3, 10, 8, 6, 7, 17, 13, 9, 14, 11, 21, 16, 20, 35, 24, 15, 41, 29, 27, 12, 26, 18, 25, 23, 37, 30, 32, 34, 33, 50, 53, 36, 52, 77, 22, 19, 60, 65, 46, 31, 39, 95, 38, 28, 43, 63, 47, 40, 48, 78, 42, 76, 59, 71, 54, 81, 45, 86, 74, 51, 73, 117, 109, 111, 110, 83, 80, 70, 113, 145, 55, 79, 151, 82, 101, 49 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

If A266121 is really a permutation of natural numbers, then this sequence is also, and no hypothetical zero-values are ever needed.

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..8189

Index entries for sequences that are permutations of the natural numbers

PROG

(Scheme, with code for A266121 defined with defineperm1-macro also required)

(define (A266122 n) (A266121 (- n))) ;; This returns inverse values of A266121 from its hidden cache.

CROSSREFS

Inverse: A266121 (with provisions, see comment section).

Sequence in context: A111145 A249920 A021660 * A064853 A177148 A188739

Adjacent sequences:  A266119 A266120 A266121 * A266123 A266124 A266125

KEYWORD

nonn,base

AUTHOR

Antti Karttunen, Dec 23 2015

STATUS

approved

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Last modified January 17 16:44 EST 2019. Contains 319235 sequences. (Running on oeis4.)