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 A361018 Parity of A361017, where A361017 is the Dirichlet inverse of Thue-Morse sequence, A010060. 2
 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1 LINKS Antti Karttunen, Table of n, a(n) for n = 1..65537 Index entries for characteristic functions FORMULA a(n) = A000035(A361017(n)) = A000035(A323886(n)). MATHEMATICA s[1] = 1; s[n_] := s[n] = -DivisorSum[n, s[#] * ThueMorse[n/#] &, # < n &]; a[n_] := Mod[s[n], 2]; Array[a, 100] (* Amiram Eldar, Mar 02 2023 *) PROG (PARI) A361018(n) = (A361017(n)%2); CROSSREFS Cf. A000035, A010060, A323886, A361017. Sequence in context: A256432 A218171 A362130 * A232714 A274179 A194675 Adjacent sequences: A361015 A361016 A361017 * A361019 A361020 A361021 KEYWORD nonn AUTHOR Antti Karttunen, Mar 02 2023 STATUS approved

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Last modified June 20 11:12 EDT 2024. Contains 373527 sequences. (Running on oeis4.)