This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A224782 Length of longest run of consecutive zeros in decimal representation of 2^n. 4
 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,54 COMMENTS a(n) <= A027870(n); a(A007377(n)) = 0; a(A006889(n)) = n and a(m) <> n for m < A006889(n). REFERENCES Julian Havil, Impossible?: Surprising Solutions to Counterintuitive Conundrums, Princeton University Press 2008, chapter 15, p. 176ff LINKS Reinhard Zumkeller, Table of n, a(n) for n = 0..10000 PROG (Haskell) import Data.List (group) a224782 n = a224782_list !! n a224782_list = map (foldl h 0 . group . show) a000079_list where    h x zs@(z:_) = if z == '0' then max x \$ length zs else x CROSSREFS Sequence in context: A076250 A231425 A136713 * A160322 A198293 A043281 Adjacent sequences:  A224779 A224780 A224781 * A224783 A224784 A224785 KEYWORD nonn,base AUTHOR Reinhard Zumkeller, Apr 30 2013 STATUS approved

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

Last modified August 24 03:51 EDT 2019. Contains 326260 sequences. (Running on oeis4.)