A061902 Number of digits in n-th term of A061482.

1, 1, 1, 2, 3, 5, 9, 17, 34, 68, 135, 270, 539, 1078, 2156, 4311, 8621, 17242, 34484, 68967, 137934, 275867, 551733, 1103466, 2206932, 4413864, 8827727

Offset: 1

Author

Asher Auel, May 05 2001

Keywords

• nonn
• base
• more

Comments

It appears that either a(n+1) = 2 * a(n) or 2 * a(n) - 1, where this alternation takes on the pattern -1, -1, 0, -1, -1, -1, -1, 0, 0, -1, 0, -1, 0, 0, -1, -1, 0, 0, -1, 0, -1, ...

Crossrefs

Cf. A055642, A061482.

Formula

a(n) = A055642(A061482(n)). - Michel Marcus, Mar 13 2023

Extensions

a(23)-a(27) from Sean A. Irvine, Mar 12 2023