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 A205083 Parity of A070885. 3
 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1 COMMENTS A simple unpredictable binary sequence. If you change a(1) to "2", then the concatenation of the first n terms yields the first length-n term of A024629 with positive even index. - Glen Whitney, Sep 17 2017 REFERENCES Wolfram, S. A New Kind of Science. Champaign, IL: Wolfram Media, 2002, p. 122. LINKS Ben Branman, Table of n, a(n) for n = 1..20000 Eric Weisstein's World of Mathematics, Wolfram Sequences MATHEMATICA a[1] = 1; a[n_] := a[n] = If[EvenQ[a[n - 1]], 3 a[n - 1]/2, (3/2) (a[n - 1] + 1)]; Mod[Table[a[n], {n, 1, 100}], 2] PROG (PARI) A205083={my(maxx=50); q=ctr=1; print1(q%2, ", "); while(ctr

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Last modified April 14 07:59 EDT 2021. Contains 342946 sequences. (Running on oeis4.)