A266122 a(n) = index of n in A266121 or 0 if n is not present in that sequence.

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

Offset: 1

Author

Antti Karttunen, Dec 23 2015

Keywords

• nonn
• base

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

Crossrefs

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