A385535 Decimal expansion of the surface area of a biaugmented pentagonal prism with unit edge.
9, 9, 0, 5, 0, 5, 6, 4, 1, 6, 3, 1, 5, 6, 8, 8, 4, 3, 2, 5, 7, 2, 9, 1, 6, 6, 3, 7, 7, 8, 8, 9, 6, 3, 9, 3, 2, 7, 0, 0, 3, 5, 8, 8, 4, 7, 6, 4, 1, 1, 5, 7, 9, 1, 4, 5, 2, 5, 8, 0, 3, 3, 7, 2, 9, 5, 1, 6, 0, 4, 0, 1, 8, 2, 3, 5, 5, 3, 2, 5, 3, 6, 8, 2, 7, 1, 7, 4, 8, 5
Offset: 1
Examples
9.905056416315688432572916637788963932700358847641...
Links
- Paolo Xausa, Table of n, a(n) for n = 1..10000
- Wikipedia, Biaugmented pentagonal prism.
Programs
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Mathematica
First[RealDigits[3 + Sqrt[12] + Sqrt[25/4 + 5*Sqrt[5]/2], 10, 100]] (* or *) First[RealDigits[PolyhedronData["J53", "SurfaceArea"], 10, 100]]
Comments