A130787 Decimal expansion of the square of Pi*log_10(e).

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

Offset

1,2

Links

Table of n, a(n) for n=1..105.

M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards, Applied Math. Series 55, Tenth Printing, 1972 [alternative scanned copy].

L. M. Milne-Thomson in M. Abramowitz and I. Stegun (eds), Handbook of Mathematical Functions, 17.3.20.

Formula

Equals A002388*A002285^2 = (Pi/log(10))^2. - Robert G. Wilson v, Jul 19 2007

Example

1.86152283492275746468321521876298236761293728581369654442208263321...

Maple

evalf((Pi/log(10) )^2);

Mathematica

RealDigits[ (Pi/Log@10)^2, 10, 111][[1]] (* Robert G. Wilson v, Jul 19 2007 *)

Crossrefs

Cf. A002388, A002285.

Sequence in context: A155184 A153101 A281822 * A273774 A153493 A113212

Adjacent sequences: A130784 A130785 A130786 * A130788 A130789 A130790

Keyword

cons,easy,nonn

Author

R. J. Mathar, Jul 15 2007

Extensions

More terms from Robert G. Wilson v, Jul 19 2007

Status

approved