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

1,4

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, ...

Links

Table of n, a(n) for n=1..27.

Formula

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

Crossrefs

Cf. A055642, A061482.

Sequence in context: A094373 A213705 A295637 * A166286 A179807 A110113

Adjacent sequences: A061899 A061900 A061901 * A061903 A061904 A061905

Keyword

nonn,base,more

Author

Asher Auel, May 05 2001

Extensions

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

Status

approved