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!)
A151753 Leading digits of A151752. 2
5, 7, 3, 9, 5, 3, 3, 9, 1, 3, 7, 7, 3, 7, 7, 5, 1, 5, 7, 9, 3, 7, 3, 3, 9, 9, 9, 5, 3, 7, 1, 7, 9, 5, 7, 9, 3, 1, 3, 9, 5, 7, 5, 5, 7, 7, 1, 1, 3, 1, 9, 5, 9, 1, 9, 5, 5, 7, 7, 7, 7, 7, 9, 7, 9, 9, 7, 7, 3, 3, 5, 9, 7, 7, 1, 1, 5, 9, 7, 1, 5, 1, 7, 5, 9, 1, 7, 9, 3, 5, 3, 9, 1, 7, 9, 9, 1, 9, 9, 1, 5, 3, 7, 5, 9 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
FORMULA
a(n) = A000030(A151752(n)). - Omar E. Pol, Jul 04 2019
MAPLE
a:= proc(n) option remember; local k, l; if n=1 then b(1):= 5; 5 else a(n-1); l:= b(n-1); for k from 1 to 9 by 2 while (parse(cat(k, l)) mod 5^n)<>0 do od; b(n):= parse(cat(k, l)); k fi end:
seq(a(n), n=1..120); # Alois P. Heinz, Jun 18 2009
CROSSREFS
Sequence in context: A345653 A091663 A011316 * A144543 A205135 A356360
KEYWORD
nonn,base
AUTHOR
Max Alekseyev, Jun 17 2009
EXTENSIONS
More terms from Alois P. Heinz, Jun 18 2009
STATUS
approved

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 March 28 17:25 EDT 2024. Contains 371254 sequences. (Running on oeis4.)