A353734 Indices of terms in A353730 that are powers of 2.

1, 2, 4, 9, 19, 79, 159, 319, 1279, 10239, 20479, 40959, 163839, 1310719, 5242879, 10485759

Offset: 1

Author

N. J. A. Sloane, May 18 2022

Keywords

• nonn
• more

Comments

The powers of 2 appear in the order 2, 1, 4, 8, 16, ... Every power of 2 will eventually appear in A353730 (in increasing order except for the initial inversion), so the sequence is infinite.

a(17) >= 83886079, since A353730(20971519) = 42002 and A353730(41943039) = 60626. - Russ Cox, May 19 2022

Examples

			A353730(79) = 32, so 79 is a term.
		

Crossrefs

Cf. A353730.

Extensions

a(9) from Chai Wah Wu, May 18 2022

a(10) from Chai Wah Wu, May 19 2022

a(11)-a(16) from Russ Cox, May 19 2022