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A077387 Continued fraction expansion of product(1 + p/((p-1)^2*(p+1))), p prime >= 2). 1
2, 4, 1, 9, 1, 1, 2, 1, 48, 1, 12, 1, 1, 2, 1, 1, 3, 9, 3, 3, 1, 16, 3, 1, 1, 6, 12, 50, 23, 8, 1, 1, 2, 1, 1, 1, 2, 1, 11, 1, 2, 2, 1, 1, 10, 5, 7, 2, 1, 3, 1, 4, 3, 8, 1, 2, 1, 1, 4, 11, 1, 1, 1, 1, 1, 16, 1, 1, 1, 7, 1, 13, 1, 3, 1, 6, 2, 7, 1, 2, 1, 11, 2, 1, 5, 1, 9, 4, 2, 9, 26, 1, 2, 1, 20, 1, 1, 4 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..98.

G. Niklasch, Some number theoretical constants: 1000-digit values [Cached copy]

EXAMPLE

2.203856596437859787872828316480...

CROSSREFS

Equals pi^2 * A065483 / 6.

Cf. A065484.

Sequence in context: A204132 A277219 A204135 * A057551 A019823 A174135

Adjacent sequences:  A077384 A077385 A077386 * A077388 A077389 A077390

KEYWORD

cofr,nonn

AUTHOR

N. J. A. Sloane, Nov 30, 2002

EXTENSIONS

Extended by Ray Chandler, Sep 27 2006

STATUS

approved

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Last modified September 18 20:18 EDT 2019. Contains 327181 sequences. (Running on oeis4.)