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 A026513 a(n) = t(2+3n), where t = A001285 (Thue-Morse sequence). 4
 2, 1, 2, 2, 2, 1, 1, 1, 2, 1, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 2, 2, 1, 1, 1, 2, 1, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 1, 1, 1, 2, 1, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 1, 1, 1, 2, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Michael De Vlieger, Table of n, a(n) for n = 0..9999 MATHEMATICA Array[1 + Mod[DigitCount[3 # + 2, 2, 1], 2] &, 105, 0] (* Michael De Vlieger, Oct 06 2019 *) Table[ThueMorse[2+3n], {n, 0, 100}]+1 (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Nov 29 2020 *) PROG (PARI) a(n)=1+hammingweight(3*n+2)%2 \\ Charles R Greathouse IV, May 09 2016 CROSSREFS Cf. A001285, A026492, A026498. Sequence in context: A145740 A138516 A180580 * A349497 A106028 A105307 Adjacent sequences: A026510 A026511 A026512 * A026514 A026515 A026516 KEYWORD nonn AUTHOR Clark Kimberling EXTENSIONS Name and Pari adapted to match offset in A001285 by Sean A. Irvine, Oct 05 2019 STATUS approved

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Last modified September 18 10:38 EDT 2024. Contains 375999 sequences. (Running on oeis4.)