1,2

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

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

Index entries for sequences that are permutations of the natural numbers

(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.

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

Sequence in context: A111145 A249920 A021660 * A064853 A177148 A188739

Adjacent sequences: A266119 A266120 A266121 * A266123 A266124 A266125

nonn,base

Antti Karttunen, Dec 23 2015

approved