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 A303780 Binary weight of A303775(n). 4
 0, 1, 2, 1, 2, 1, 2, 3, 4, 3, 2, 1, 3, 2, 3, 2, 4, 1, 2, 3, 2, 4, 2, 3, 5, 3, 4, 3, 2, 1, 4, 3, 2, 5, 4, 3, 2, 4, 3, 2, 4, 3, 4, 3, 6, 5, 4, 3, 2, 5, 4, 2, 5, 3, 4, 3, 4, 3, 4, 3, 5, 3, 4, 3, 4, 1, 4, 3, 2, 4, 3, 2, 5, 3, 2, 4, 3, 5, 4, 3, 2, 4, 3, 6, 5, 4, 2, 5, 3, 4, 3, 4, 3, 4, 5, 4, 3, 4, 3, 2, 4, 3, 5, 4, 3, 4 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Antti Karttunen, Table of n, a(n) for n = 0..16383 Index entries for sequences related to binary expansion of n FORMULA a(n) = A000120(A303775(n)). For all n >= 0, abs(a(n+1)-a(n)) = A000120(A303775(n+1) XOR A303775(n)), where XOR is a bitwise exclusive or, A003987. PROG (PARI) A303780(n) = hammingweight(A303775(n)); \\ For other needed code, see A303775. CROSSREFS Cf. A000120, A303775, A303779. Cf. also A304089. Sequence in context: A083409 A344779 A317586 * A234022 A261273 A097454 Adjacent sequences: A303777 A303778 A303779 * A303781 A303782 A303783 KEYWORD nonn,base AUTHOR Antti Karttunen, May 06 2018 STATUS approved

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Last modified September 18 15:14 EDT 2024. Contains 376000 sequences. (Running on oeis4.)