A372585 Decimal expansion of (25/297)*Pi^2.

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

Offset

0,1

Links

Paolo Xausa, Table of n, a(n) for n = 0..10000

J. M. Borwein and P. B. Borwein, Strange Series and High Precision Fraud, The American Mathematical Monthly, Vol. 99, No. 7 (1992), pp. 622-640.

Index entries for transcendental numbers

Formula

Equals Sum_{k >= 1} A196564(k)*(1/k^2 - 1/(k+1)^2). See Sum 3 in Borwein and Borwein (1992), p. 622.

Example

0.8307747812364779982183914983060733278883585359630295140...

Mathematica

First[RealDigits[25*Pi^2/297, 10, 100]]

Crossrefs

Cf. A000796, A002388, A196564, A372609.

Sequence in context: A338612 A010521 A200025 * A200300 A268440 A137433

Adjacent sequences: A372582 A372583 A372584 * A372586 A372587 A372588

Keyword

nonn,cons

Author

Paolo Xausa, May 06 2024

Status

approved