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!)
 A101650 A Thue-Morse-Stern sequence. 3
 0, 0, 1, 0, 2, 1, 2, 0, 0, 2, 1, 1, 1, 2, 0, 0, 1, 0, 0, 2, 1, 1, 0, 1, 0, 1, 1, 2, 0, 0, 1, 0, 2, 1, 2, 0, 1, 0, 0, 2, 1, 1, 0, 1, 2, 0, 2, 1, 2, 0, 2, 1, 0, 1, 1, 2, 0, 0, 1, 0, 2, 1, 2, 0, 0, 2, 1, 1, 1, 2, 0, 0, 2, 1, 2, 0, 1, 0, 0, 2, 1, 1, 0, 1, 2, 0, 2, 1, 1, 2, 0, 0, 0, 2, 1, 1, 1, 2, 0, 0, 0 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,5 COMMENTS a(2n+1) = a(n). LINKS FORMULA a(n)=mod(-1+sum{k=0..floor(n/2), mod(binomial(n-k, k), 2)}, 3); a(n)=mod(-1+A002487(n+1), 3). CROSSREFS Cf. A010060. Sequence in context: A091952 A108803 A050601 * A287411 A053796 A029391 Adjacent sequences:  A101647 A101648 A101649 * A101651 A101652 A101653 KEYWORD easy,nonn AUTHOR Paul Barry, Dec 10 2004 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 July 29 06:36 EDT 2021. Contains 346340 sequences. (Running on oeis4.)