A116393 Decimal expansion of Product(1 - 1/(p+1)^3), p prime >= 2.

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

Offset: 0

Author

N. J. A. Sloane, Apr 15 2006

Keywords

• nonn
• cons

Comments

Calculated from A065465 * A065467^3 * X / A065466^2 where X = 1.03108637675008536... = product[ 1+ (4p^13 +13p^12 +10p^11 -3p^10 -9p^9 -12p^8 -9p^7 +6p^5 +4p^4 +2p^3 +p^2 -p -1) /(p^5+p^4-1)^3 / (p^3+p^2-1) / (p+1)] over prime p >=2. - R. J. Mathar, Sep 10 2007

Examples

			0.9403004...
		

Crossrefs

Cf. A065472.

Programs

PARI

prodeulerrat(1 - 1/(p+1)^3) \\ Amiram Eldar, Nov 29 2020

Extensions

More terms from John W. Layman and Zak Seidov, Apr 20 2006

More terms from R. J. Mathar, Sep 10 2007

More terms from Amiram Eldar, Nov 29 2020