A146993 Number of terms in A145848 with exactly 2n decimal digits.

1, 1, 5, 1, 12, 1, 24, 2, 47, 2, 53, 1, 70, 1

Offset

1,3

Comments

It is shown by I. Bernshtein, see link, that a(2n+1)>=1 and 1<=a(2n)<=2. Thanks to Tanya Khovanova for this link.

Links

Table of n, a(n) for n=1..14.

I. Bernshtein, Solution of problem M460.

Crossrefs

Cf. A145848, A146991.

Sequence in context: A063004 A351573 A347135 * A343223 A104572 A125232

Adjacent sequences: A146990 A146991 A146992 * A146994 A146995 A146996

Keyword

more,nonn,base

Author

Zak Seidov, Nov 04 2008

Extensions

Definition, comment, and a(11) corrected, and a(12)-a(14) added, by Jon E. Schoenfield, Nov 19 2008

Status

approved