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A195055 Decimal expansion of Pi^2/3. 7
3, 2, 8, 9, 8, 6, 8, 1, 3, 3, 6, 9, 6, 4, 5, 2, 8, 7, 2, 9, 4, 4, 8, 3, 0, 3, 3, 3, 2, 9, 2, 0, 5, 0, 3, 7, 8, 4, 3, 7, 8, 9, 9, 8, 0, 2, 4, 1, 3, 5, 9, 6, 8, 7, 5, 4, 7, 1, 1, 1, 6, 4, 5, 8, 7, 4, 0, 0, 1, 4, 9, 4, 0, 8, 0, 6, 4, 0, 1, 7, 4, 7, 6, 6, 7, 2, 5, 7, 8, 0, 1, 2, 3, 9, 5, 1, 7, 4, 1, 0, 6, 0, 8, 0, 0 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

A195055 = -Sum_{n>=1} Psi_2(n), where Psi_2 is the tetragamma function. - Istvan Mezo, Oct 25 2012

LINKS

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

G. E. Andrews, Partitions with short sequences and mock theta functions

FORMULA

Equals 3 + A145426.

Equals integral_{x=0..1} (log(x)/(x - 1))^2 dx. - Jean-Fran├žois Alcover, Mar 21 2013

EXAMPLE

3.289868133696452872944830333292050378438...

MATHEMATICA

RealDigits[Pi^2/3, 10, 105][[1]] (* T. D. Noe, Oct 05 2011 *)

PROG

(MAGMA) pi:=Pi(RealField(110)); Reverse(Intseq(Floor(10^105*pi^2/3))); // Vincenzo Librandi, Jan 12 2016

CROSSREFS

Cf. A002388, A102753, A091476, A164102, A013661.

Sequence in context: A195305 A021308 A274181 * A214683 A060921 A163356

Adjacent sequences:  A195052 A195053 A195054 * A195056 A195057 A195058

KEYWORD

nonn,cons

AUTHOR

Omar E. Pol, Oct 04 2011

EXTENSIONS

Extended by T. D. Noe, Oct 05 2011

STATUS

approved

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Last modified February 24 18:24 EST 2018. Contains 299628 sequences. (Running on oeis4.)