A285687 Lexicographically earliest sequence of distinct positive terms such that, for any n>0, n and a(n) differ and overlap in base 10 (in the sense of A262323).

10, 12, 13, 14, 15, 16, 17, 18, 19, 1, 21, 2, 3, 4, 5, 6, 7, 8, 9, 22, 11, 20, 30, 32, 42, 52, 62, 72, 82, 23, 33, 24, 31, 40, 43, 53, 63, 73, 83, 34, 44, 25, 35, 41, 50, 54, 64, 74, 84, 45, 55, 26, 36, 46, 51, 60, 65, 75, 85, 56, 66, 27, 37, 47, 57, 61, 70

Offset: 1

Author

Rémy Sigrist, May 03 2017

Keywords

• nonn
• base
• look

Comments

The definition of the overlapping of two numbers is that of the sequence A262323.

This sequence is a self-inverse permutation of the natural numbers.

Examples

			The first terms are:
n:    1,   2,  3,  4,  5,  6,  7,  8,  9, 10,  11, 12, 13, 14, 15,...
a(n): 10, 12, 13, 14, 15, 16, 17, 18, 19, 1,  21,   2,  3,  4,  5,...
		

Links

• Rémy Sigrist, Table of n, a(n) for n = 1..10000
• Rémy Sigrist, PERL program for A285687
• Index entries for sequences that are permutations of the natural numbers

Crossrefs

Cf. A262323.

Extensions

Expanded definition. - N. J. A. Sloane, Oct 29 2023