login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A061902 Number of digits in n-th term of A061482. 1

%I #9 Oct 27 2023 22:00:46

%S 1,1,1,2,3,5,9,17,34,68,135,270,539,1078,2156,4311,8621,17242,34484,

%T 68967,137934,275867,551733,1103466,2206932,4413864,8827727

%N Number of digits in n-th term of A061482.

%C 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, ...

%F a(n) = A055642(A061482(n)). - _Michel Marcus_, Mar 13 2023

%Y Cf. A055642, A061482.

%K nonn,base,more

%O 1,4

%A _Asher Auel_, May 05 2001

%E a(23)-a(27) from _Sean A. Irvine_, Mar 12 2023

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 23 10:29 EDT 2024. Contains 371905 sequences. (Running on oeis4.)