A197756 The Yellow Comma sequence.

1, 2, 3, 4, 6, 5, 8, 10, 7, 12, 14, 11, 16, 18, 9, 20, 22, 24, 13, 26, 28, 30, 32, 15, 34, 36, 101, 38, 40, 42, 44, 46, 17, 48, 50, 52, 54, 56, 58, 19, 60, 62, 64, 66, 103, 68, 70, 72, 74, 76, 78, 80, 21, 82, 84, 86, 88, 90, 92, 94

Offset: 1

Author

N. J. A. Sloane, Nov 29 2011, based on a posting to the Sequence Fans Mailing List by Eric Angelini, Nov 27 2011

Keywords

• nonn
• base

Comments

Color in yellow the commas following an odd term. The number of digits between yellow commas is given by the sequence itself. This is a permutation of the natural numbers and the lexicographically earliest such sequence.

Links

• Robert Price, Table of n, a(n) for n = 1..10000

Extensions

a(28)-a(60) from Robert Price, Aug 22 2012