A280746 Index of 2^n in A280864.

1, 2, 3, 6, 13, 30, 65, 127, 258, 530, 1009, 1988, 3942, 8004, 16195, 32389, 64923, 129870, 260326, 520787, 1043257, 2085202, 4171403, 8338443

Offset: 0

Author

N. J. A. Sloane, Jan 13 2017

Keywords

• nonn
• more

Examples

			A280864(30) = 32, so a(5) = 30.
		

Crossrefs

Cf. A280864, A282024.

Extensions

a(17)-a(23) from Lars Blomberg, Jan 14 2017