A338347 - OEIS

A338347

a(n) = index k such that A338338(k) = n, or -1 if n does not appear in A338338.

1, 2, 5, 3, 7, 4, 11, 10, 6, 8, 19, 14, 33, 12, 15, 18, 38, 22, 42, 9, 23, 20, 54, 26, 68, 32, 27, 13, 73, 16, 78, 37, 28, 39, 60, 35, 82, 41, 34, 17, 91, 24, 95, 21, 44, 53, 120, 36, 90, 31, 49, 64, 125, 56, 29, 25, 43, 72, 145, 45, 152, 79, 48, 81, 69, 57, 157, 40, 55, 46

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

There is a strong conjecture that A338338 is a permutation of the positive integers. If that is true, this is the inverse permutation.

LINKS

Rémy Sigrist, Table of n, a(n) for n = 1..10000

Rémy Sigrist, PARI program for A338347

PROG

(PARI) See Links section.

CROSSREFS

Cf. A338338-A338349.