A286293 A compressed version of A286290.

1, 2, 4, 11, 17, 12, 14, 16, 29, 35, 24, 26, 28, 30, 32, 53, 59, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 98, 104, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 161, 167, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132, 134, 136

Offset: 1

Author

N. J. A. Sloane, May 23 2017

Keywords

• nonn

Examples

			Start with A064736, bisect to get A286290, take second difference, and we get:
1, 2, 7, 6, -5, 2, 2, 13, 6, -11, 2, 2, 2, 2, 21, 6, -19, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 36, 6, -34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 57, 6, -55, 2, 2, ...
which appears to consist of runs of 2's separated by a triple of numbers.
Look at the runs in that sequence:
1, 1, 1, 1, 1, 2, 1, 1, 1, 4, 1, 1, 1, 11, 1, 1, 1, 17, 1, 1, 1, 12, 1, 1, 1, 14, 1, 1, 1, 16, 1, 1, 1, 29, 1, 1, 1, 35, 1, 1, 1, 24, 1, 1, 1, 26, 1, 1, ...
and take the 4i+2 subsequence, which gives the present sequence.
		

Links

• Ray Chandler, Table of n, a(n) for n = 1..971

Crossrefs

Cf. A064736, A286290, A286291, A286292.