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 A107279 a(n) = 1 if n is an odd prime, a(n) = 2 if n is a nonzero even number, otherwise a(n) = 0. 1
 0, 0, 2, 1, 2, 1, 2, 1, 2, 0, 2, 1, 2, 1, 2, 0, 2, 1, 2, 1, 2, 0, 2, 1, 2, 0, 2, 0, 2, 1, 2, 1, 2, 0, 2, 0, 2, 1, 2, 0, 2, 1, 2, 1, 2, 0, 2, 1, 2, 0, 2, 0, 2, 1, 2, 0, 2, 0, 2, 1, 2, 1, 2, 0, 2, 0, 2, 1, 2, 0, 2, 1, 2, 1, 2, 0, 2, 0, 2, 1, 2, 0, 2, 1, 2, 0, 2, 0, 2, 1, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Antti Karttunen, Table of n, a(n) for n = 0..5000 PROG (Scheme) (define (A107279 n) (cond ((<= n 1) 0) ((even? n) 2) (else (A010051 n)))) ;; Antti Karttunen, Sep 14 2017 CROSSREFS Cf. A010051, A105661. Sequence in context: A045888 A335885 A335875 * A078461 A341945 A280535 Adjacent sequences:  A107276 A107277 A107278 * A107280 A107281 A107282 KEYWORD easy,nonn AUTHOR Giovanni Teofilatto, May 19 2005 EXTENSIONS Description corrected by Antti Karttunen, Sep 14 2017 STATUS approved

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Last modified August 16 15:34 EDT 2022. Contains 356168 sequences. (Running on oeis4.)