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 A102397 a(n) = concatenation of first n elements of Thue-Morse sequence A010059. 2
 1, 10, 100, 1001, 10010, 100101, 1001011, 10010110, 100101100, 1001011001, 10010110011, 100101100110, 1001011001101, 10010110011010, 100101100110100, 1001011001101001, 10010110011010010, 100101100110100101 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS FORMULA a(n)=sum{k=0..n, (1+(-1)^A010060(n-k))10^k/2}. MATHEMATICA With[{tm=Nest[Join[#, Mod[2#+1, 3]]&, {1}, 10]}, Table[FromDigits[Take[tm, n]], {n, 20}]] (* Harvey P. Dale, May 15 2016 *) CROSSREFS Cf. A019299. Sequence in context: A282984 A266071 A118256 * A132347 A215254 A262863 Adjacent sequences:  A102394 A102395 A102396 * A102398 A102399 A102400 KEYWORD base,easy,nonn AUTHOR Paul Barry, Jan 06 2005 STATUS approved

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Last modified August 8 14:04 EDT 2020. Contains 336298 sequences. (Running on oeis4.)