A180317 Decimal expansion of the torsional rigidity constant for an equilateral triangular shaft.

0, 2, 1, 6, 5, 0, 6, 3, 5, 0, 9, 4, 6, 1, 0, 9, 6, 6, 1, 6, 9, 0, 9, 3, 0, 7, 9, 2, 6, 8, 8, 2, 3, 4, 0, 4, 5, 8, 6, 7, 8, 5, 0, 6, 5, 6, 7, 2, 6, 2, 9, 7, 5, 7, 8, 5, 0, 6, 9, 7, 5, 8, 7, 2, 4, 3, 1, 4, 9, 1, 6, 2, 7, 1, 1, 3, 6, 0, 0, 0, 0, 4, 6, 3, 5, 1, 4, 3, 2, 7, 3, 3, 4, 4, 6, 5, 6, 0, 7, 1, 9, 5, 9, 4, 5

Offset

0,2

Links

Table of n, a(n) for n=0..104.

Eric Weisstein's World of Mathematics, Torsional Rigidity.

Formula

Equals sqrt(3)/80.

Example

0.02165063509461096616...

Mathematica

RealDigits[Sqrt[3]/80, 10, 100][[1]] (* Amiram Eldar, Jun 09 2021 *)

Crossrefs

Cf. A180309, A180310, A180311, A180314.

Sequence in context: A084950 A336382 A358282 * A066654 A145960 A205455

Adjacent sequences: A180314 A180315 A180316 * A180318 A180319 A180320

Keyword

nonn,cons

Author

Eric W. Weisstein, Aug 27 2010

Status

approved