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 A269517 Lexicographically least sequence of nonnegative integers that avoids a/b-powers for all a/b >= 3/2. 1
 0, 1, 2, 0, 3, 1, 0, 2, 1, 3, 0, 1, 2, 0, 4, 1, 0, 2, 1, 4, 0, 1, 2, 0, 3, 1, 0, 2, 1, 5, 0, 1, 2, 0, 4, 1, 0, 2, 1, 3, 0, 1, 2, 0, 3, 1, 0, 2, 1, 4, 0, 1, 2, 0, 4, 1, 0, 2, 1, 5, 0, 1, 2, 0, 3, 1, 0, 2, 1, 3, 0, 1, 2, 0, 4, 1, 0, 2, 1, 4, 0, 1, 2, 0, 3, 1, 0, 2, 1, 6, 0, 1, 2, 0, 4, 1, 0, 2, 1, 3, 0, 1, 2, 0, 3, 1, 0, 2, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS Rowland and Shallit showed that this sequence is 6-regular. LINKS Eric Rowland and Jeffrey Shallit, Avoiding 3/2-powers over the natural numbers, arXiv:1101.3535 [math.CO] (2011). Eric Rowland and Jeffrey Shallit, Avoiding 3/2-powers over the natural numbers, Discrete Mathematics 312 (2012) 1282-1288. Lara Pudwell and Eric Rowland, Avoiding fractional powers over the natural numbers, arXiv:1510.02807 [math.CO] (2015). FORMULA a(5 n + 4) = A269518(n) + 3. - Eric Rowland, Oct 01 2016 CROSSREFS Cf. A269518 (the lexicographically least sequence that avoids 3/2-powers). Sequence in context: A143143 A158853 A238762 * A190440 A054372 A070679 Adjacent sequences: A269514 A269515 A269516 * A269518 A269519 A269520 KEYWORD nonn AUTHOR Eric Rowland, Feb 28 2016 STATUS approved

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Last modified March 29 08:33 EDT 2023. Contains 361596 sequences. (Running on oeis4.)