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A157214
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Decimal expansion of 18+5*sqrt(2).
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4
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2, 5, 0, 7, 1, 0, 6, 7, 8, 1, 1, 8, 6, 5, 4, 7, 5, 2, 4, 4, 0, 0, 8, 4, 4, 3, 6, 2, 1, 0, 4, 8, 4, 9, 0, 3, 9, 2, 8, 4, 8, 3, 5, 9, 3, 7, 6, 8, 8, 4, 7, 4, 0, 3, 6, 5, 8, 8, 3, 3, 9, 8, 6, 8, 9, 9, 5, 3, 6, 6, 2, 3, 9, 2, 3, 1, 0, 5, 3, 5, 1, 9, 4, 2, 5, 1, 9, 3, 7, 6, 7, 1, 6, 3, 8, 2, 0, 7, 8, 6, 3, 6, 7, 5, 0
(list; constant; graph; refs; listen; history; internal format)
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OFFSET
| 2,1
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COMMENTS
| lim_{n -> infinity} b(n)/b(n-1) = (18+5*sqrt(2))/(18-5*sqrt(2)) for n mod 3 = {1, 2}, b = A129544.
lim_{n -> infinity} b(n)/b(n-1) = (18+5*sqrt(2))/(18-5*sqrt(2)) for n mod 3 = {0, 2}, b = A157213.
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FORMULA
| 18+10*A010503. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 27 2009]
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EXAMPLE
| 18+5*sqrt(2) = 25.07106781186547524400...
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MATHEMATICA
| RealDigits[18+5Sqrt[2], 10, 150][[1]] (* From Harvey P. Dale, Mar 18 2011 *)
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CROSSREFS
| Cf. A129544, A157213, A157215 (decimal expansion of 18-5*sqrt(2)), A157216 (decimal expansion of (18-5*sqrt(2))/(18+5*sqrt(2))).
Sequence in context: A021403 A019727 A011184 * A066033 A096319 A146105
Adjacent sequences: A157211 A157212 A157213 * A157215 A157216 A157217
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KEYWORD
| cons,nonn
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AUTHOR
| Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Feb 25 2009
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