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

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give
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

Alois P. Heinz, Table of n, a(n) for n = 1..10000

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

Cf. A000030, A151752.

Sequence in context: A345653 A091663 A011316 * A144543 A205135 A356360

Adjacent sequences: A151750 A151751 A151752 * A151754 A151755 A151756

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 December 5 02:30 EST 2022. Contains 358572 sequences. (Running on oeis4.)