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 A283092 The smallest square referenced in A280296 (Squarefree numbers n such that 2^n - 1 is divisible by a square > 1). 1
 9, 49, 9, 9, 9, 9, 9, 49, 121, 9, 9, 961, 9, 9, 9, 9, 49, 9, 529, 9, 49, 9, 961, 9, 9, 9, 49, 9, 9, 49, 9, 9, 9, 9, 961, 9, 49, 529, 9, 9, 9, 9, 9, 1849, 9, 49, 9, 9, 49, 9, 9, 9, 9, 529, 9, 121, 49, 9, 9, 9 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..60. EXAMPLE A280296(1)=6, 2^6-1 = 63 = 3*3*7, so 63 is not squarefree the square being 3*3=9. CROSSREFS Cf. A280296, A283245. Sequence in context: A007037 A179280 A293095 * A249780 A140891 A072461 Adjacent sequences: A283089 A283090 A283091 * A283093 A283094 A283095 KEYWORD nonn AUTHOR Robert Price, Mar 06 2017 STATUS approved

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Last modified June 14 03:16 EDT 2024. Contains 373392 sequences. (Running on oeis4.)