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 A316606 Decimal expansion of the sixth smallest known Salem number. 5
 1, 2, 1, 9, 7, 2, 0, 8, 5, 9, 0, 4, 0, 3, 1, 1, 8, 4, 4, 1, 6, 9, 6, 0, 6, 7, 6, 0, 4, 1, 4, 6, 7, 7, 9, 4, 4, 3, 9, 0, 4, 1, 5, 5, 0, 5, 5, 4, 1, 5, 6, 9, 6, 7, 8, 2, 8, 7, 9, 7, 4, 4, 1, 7, 8, 7, 3, 3, 8, 4, 6, 4, 5, 9, 9, 0, 8, 3, 9, 0, 6, 5, 8, 3, 5, 5, 3, 9, 3, 2, 0, 7, 8, 5, 1, 6, 2, 5, 9, 5, 7, 8 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS M. J. Mossinghoff, Small Salem Numbers Eric Weisstein's MathWorld, Salem Constants. Wikipedia, Salem number FORMULA Equals root of p = 1 - x - x^8 + x^9 - x^10 - x^17 + x^18 with largest absolute value. EXAMPLE 1.219720859040311844169606760414677944390415505541569678287974417873... MATHEMATICA c1 = {1, -1, 0, 0, 0, 0, 0, 0, -1, 1}; c2 = Join[c1, Reverse[Most[c1]]]; p = (x^Range[0, Length[c2] - 1]).c2; sigma6 = Root[p, x, 2]; RealDigits[sigma6, 10, 102][[1]] CROSSREFS Cf. A073011 (sigma1), A219300 (sigma2), A306078 (sigma3 ), A306079 (sigma4), A316605 (sigma5), A316607 (sigma7), A316608 (sigma8), A316609 (sigma9), A316610 (sigma10). Sequence in context: A245461 A086572 A349035 * A016632 A176400 A021459 Adjacent sequences: A316603 A316604 A316605 * A316607 A316608 A316609 KEYWORD nonn,cons AUTHOR Jean-François Alcover, Jul 08 2018 STATUS approved

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Last modified March 24 18:21 EDT 2023. Contains 361510 sequences. (Running on oeis4.)