OFFSET
0,3
LINKS
J.-P. Allouche and Jeffrey Shallit, The Ubiquitous Prouhet-Thue-Morse Sequence, in C. Ding. T. Helleseth and H. Niederreiter, eds., Sequences and Their Applications: Proceedings of SETA '98, Springer-Verlag, 1999, pp. 1-16.
Michael Gilleland, Some Self-Similar Integer Sequences
FORMULA
a(n) = A053735(n) mod 4.
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
EXTENSIONS
More terms from Antonio G. Astudillo (afg_astudillo(AT)hotmail.com), Jun 15 2001
STATUS
approved