A266118 a(n) = index of n in A266117 or 0 if n is not present in that sequence.

1, 2, 3, 4, 5, 8, 9, 11, 12, 6, 7, 10, 14, 18, 23, 22, 19, 15, 16, 26, 21, 20, 27, 13, 31, 17, 37, 30, 28, 25, 59, 24, 39, 33, 70, 40, 41, 48, 47, 38, 35, 29, 74, 44, 64, 54, 53, 32, 45, 56, 49, 50, 34, 36, 51, 61, 62, 55, 52, 57, 42, 58, 66, 63, 43, 60, 75, 69, 68, 76, 77, 46, 73, 67, 85, 83, 94, 78, 71, 65, 89, 98, 136, 79, 119, 100

Offset: 1

Author

Antti Karttunen, Dec 22 2015

Keywords

• nonn
• base

Comments

It is conjectured that A266117 is not just injective, but also surjective on N, i.e., that it is a true permutation of natural numbers. In that case also this sequence is a true permutation, and no hypothetical zero-values are ever needed.

Links

• Antti Karttunen, Table of n, a(n) for n = 1..12634
• Index entries for sequences that are permutations of the natural numbers

Crossrefs

Inverse: A266117 (with provisions, see comment section).