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 A271420 Nonludicity of n. 4
 0, 0, 0, 1, 0, 1, 0, 1, 2, 1, 0, 1, 0, 1, 2, 1, 0, 1, 3, 1, 2, 1, 0, 1, 0, 1, 2, 1, 0, 1, 4, 1, 2, 1, 3, 1, 0, 1, 2, 1, 0, 1, 0, 1, 2, 1, 0, 1, 3, 1, 2, 1, 0, 1, 5, 1, 2, 1, 4, 1, 0, 1, 2, 1, 3, 1, 0, 1, 2, 1, 0, 1, 6, 1, 2, 1, 0, 1, 3, 1, 2, 1, 0, 1, 4, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,9 COMMENTS If n is ludic, a(n)=0; if n is nonludic, a(n) is the step at which n is rejected from the ludic number sieve. LINKS Max Barrentine, Table of n, a(n) for n = 1..10000 FORMULA a(n) = (1-A192490(n)) * A260738(n). - Antti Karttunen, Sep 11 2016 PROG (Scheme) (define (A271419 n) (* (- 1 (A192490 n)) (A260738 n))) -- Antti Karttunen, Sep 11 2016 CROSSREFS Cf. A003309, A192490, A192607, A255127, A271419. Cf. A265859 (analogous version for lucky numbers). Sequence in context: A334208 A159195 A265859 * A099313 A316491 A097468 Adjacent sequences:  A271417 A271418 A271419 * A271421 A271422 A271423 KEYWORD nonn AUTHOR Max Barrentine, Apr 07 2016 STATUS approved

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Last modified June 22 09:16 EDT 2021. Contains 345375 sequences. (Running on oeis4.)