The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A203531 Run lengths in Golay-Rudin-Shapiro sequence A020985. 2
 3, 1, 2, 1, 4, 3, 1, 1, 3, 1, 2, 1, 1, 3, 3, 1, 4, 1, 2, 1, 4, 3, 1, 4, 1, 2, 1, 1, 3, 3, 1, 1, 3, 1, 2, 1, 4, 3, 1, 1, 3, 1, 2, 1, 1, 3, 3, 1, 1, 3, 1, 2, 1, 4, 3, 1, 4, 1, 2, 1, 1, 3, 3, 1, 4, 1, 2, 1, 4, 3, 1, 1, 3, 1, 2, 1, 1, 3, 3, 1, 4, 1, 2, 1, 4, 3 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS a(2*n) = length of n-th run of 1s; a(2*n+1) = length of n-th run of -1s. LINKS Reinhard Zumkeller, Table of n, a(n) for n = 0..10000 Eric Weisstein's World of Mathematics, Rudin-Shapiro Sequence PROG (Haskell) import Data.List (group) a203531 n = a203531_list !! n a203531_list = map length \$ group a020985_list CROSSREFS Sequence in context: A257915 A257904 A257980 * A324885 A046645 A284639 Adjacent sequences:  A203528 A203529 A203530 * A203532 A203533 A203534 KEYWORD nonn AUTHOR Reinhard Zumkeller, Jan 02 2012 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 8 11:31 EDT 2020. Contains 336298 sequences. (Running on oeis4.)