A180310 Decimal expansion of Pi/2 - 4/Pi.

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

Offset

0,1

Comments

Torsional rigidity constant for a half-disk shaped shaft.

Links

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

Index entries for transcendental numbers

Example

0.29755678205973393308...

Mathematica

RealDigits[-4/Pi+Pi/2, 10, 120][[1]] (* Harvey P. Dale, May 02 2012 *)

Crossrefs

Sequence in context: A309928 A176977 A202473 * A268086 A021340 A241753

Adjacent sequences: A180307 A180308 A180309 * A180311 A180312 A180313

Keyword

nonn,cons

Author

Eric W. Weisstein, Aug 26 2010

Status

approved