A355896 Multiples of 3 in A354790, divided by 3, in order of appearance.

1, 2, 13, 11, 23, 19, 59, 53, 127, 113, 277, 271, 631, 619, 1409, 1399, 1823, 3967, 3947, 8783, 8779, 18257, 18253, 25873

Offset: 1

Author

N. J. A. Sloane, Aug 27 2022

Keywords

• nonn
• more

Comments

The multiples of 3 in A354790 appear at indices 3, 7, 17, 35, 71, 143, 287, 575, 1151, ... and conjecturally at indices 9*2^k-1 for all k >= 1.

Crossrefs

Cf. A354790, A355895.

Extensions

a(16)-a(24) from Rémy Sigrist, Aug 29 2022