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 A178809 Decimal expansion of the area of the regular 12-gon (dodecagon) of edge length 1. 10
 1, 1, 1, 9, 6, 1, 5, 2, 4, 2, 2, 7, 0, 6, 6, 3, 1, 8, 8, 0, 5, 8, 2, 3, 3, 9, 0, 2, 4, 5, 1, 7, 6, 1, 7, 1, 0, 0, 8, 2, 8, 4, 1, 5, 7, 6, 1, 4, 3, 1, 1, 4, 1, 8, 8, 4, 1, 6, 7, 4, 2, 0, 9, 3, 8, 3, 5, 5, 7, 9, 9, 0, 5, 0, 7, 2, 6, 4, 0, 0, 1, 1, 1, 2, 4, 3, 4, 3, 8, 5, 6, 0, 2, 7, 1, 7, 4, 5, 7, 2, 7, 0, 2, 6, 8 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 2,4 LINKS G. C. Greubel, Table of n, a(n) for n = 2..10000 FORMULA Digits of 6+3*sqrt(3). Equals 1 + A176532 = 6 + A010482. EXAMPLE 11.196152422706631880582339024517617100828415761431141884167420938355... MATHEMATICA RealDigits[N[6+3*Sqrt[3], 150]][[1]] PROG (PARI) sqrt(27)+6 \\ Charles R Greathouse IV, Apr 25 2016 CROSSREFS Cf. A010482, A090488, A104956, A120011, A176532. Sequence in context: A194825 A092732 A176532 * A021108 A021840 A198582 Adjacent sequences:  A178806 A178807 A178808 * A178810 A178811 A178812 KEYWORD cons,nonn,easy AUTHOR Vladimir Joseph Stephan Orlovsky, Jun 16 2010 EXTENSIONS Offset corrected, keyword:cons inserted, formula with A176532 added - R. J. Mathar, Jun 25 2010 STATUS approved

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Last modified February 23 13:37 EST 2020. Contains 332159 sequences. (Running on oeis4.)