A352690 Index of 2^n-1 in A353709.

0, 1, 5, 53, 76, 245, 1647, 5257, 20336, 30940, 124837, 374756, 1205149, 2643792, 7516934, 29855796, 102243621

Offset: 0

Author

Rémy Sigrist, May 15 2022

Keywords

• nonn
• base
• more

Comments

This sequence is strictly increasing.

Examples

			A353709(1647) = 63 = 2^6 - 1, so a(6) = 1647.
		

Links

• Rémy Sigrist, C++ program

Crossrefs

Cf. A000225, A353709, A353405.