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 A275808 a(0) = 0, for n >= 1, a(n) = A275736(n) XOR a(A257684(n)), where XOR is given by A003987. 7
 0, 1, 2, 3, 1, 0, 4, 5, 6, 7, 5, 4, 2, 3, 0, 1, 3, 2, 1, 0, 3, 2, 0, 1, 8, 9, 10, 11, 9, 8, 12, 13, 14, 15, 13, 12, 10, 11, 8, 9, 11, 10, 9, 8, 11, 10, 8, 9, 4, 5, 6, 7, 5, 4, 0, 1, 2, 3, 1, 0, 6, 7, 4, 5, 7, 6, 5, 4, 7, 6, 4, 5, 2, 3, 0, 1, 3, 2, 6, 7, 4, 5, 7, 6, 0, 1, 2, 3, 1, 0, 3, 2, 1, 0, 2, 3, 1, 0, 3, 2, 0 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Antti Karttunen, Table of n, a(n) for n = 0..40320 FORMULA a(0) = 0, for n >= 1, a(n) = A275736(n) XOR a(A257684(n)), where 2-argument function XOR is given by A003987. a(n) = A248663(A275734(n)). PROG (Scheme, with memoization-macro definec) (definec (A275808 n) (if (zero? n) n (A003987bi (A275736 n) (A275808 (A257684 n))))) ;; Where A003987bi implements bitwise-XOR (A003987) CROSSREFS Cf. A003987, A248663, A257684, A275734, A275736. Cf. A275809 (positions of zeros), A275810 (and their first differences). Cf. also A275728. Sequence in context: A178245 A167666 A115352 * A038554 A100329 A193535 Adjacent sequences:  A275805 A275806 A275807 * A275809 A275810 A275811 KEYWORD nonn,base AUTHOR Antti Karttunen, Aug 09 2016 STATUS approved

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Last modified October 14 12:02 EDT 2019. Contains 328004 sequences. (Running on oeis4.)