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 A202473 Decimal expansion of the surface area of a unit Reuleaux triangle. 1
 2, 9, 7, 5, 4, 7, 1, 7, 1, 6, 5, 8, 4, 4, 0, 1, 6, 2, 9, 2, 7, 2, 4, 2, 1, 8, 5, 7, 7, 7, 2, 2, 5, 0, 3, 1, 0, 7, 9, 1, 2, 3, 5, 0, 2, 6, 6, 0, 9, 1, 3, 9, 4, 6, 4, 7, 9, 9, 6, 8, 6, 7, 3, 2, 5, 1, 0, 6, 6, 9, 5, 8, 9, 6, 8, 1, 0, 6, 2, 4, 0, 7, 6, 6, 5, 7, 4, 9, 4, 3, 9, 6, 6, 1, 4, 3, 9, 9, 6, 3, 3, 5, 6, 1, 8 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..105. Eric Weisstein's World of Mathematics, Reuleaux Tetrahedron FORMULA 8*Pi - 18*arccos(1/3). EXAMPLE 2.9754717165844016292... MATHEMATICA RealDigits[8*Pi - 18*ArcCos[1/3], 10, 100][[1]] CROSSREFS Sequence in context: A244596 A309928 A176977 * A180310 A268086 A021340 Adjacent sequences: A202470 A202471 A202472 * A202474 A202475 A202476 KEYWORD nonn,cons AUTHOR Eric W. Weisstein, Dec 19 2011 STATUS approved

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Last modified June 4 21:13 EDT 2023. Contains 363130 sequences. (Running on oeis4.)