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A078081 Continued fraction expansion of Product_{p prime} (1 - 1/(p^2+p-1)). 1
0, 1, 2, 37, 1, 4, 23, 2, 15, 2, 1, 1, 1, 1, 1, 7, 4, 3, 2, 4, 1, 2, 1, 3, 1, 1, 1, 5, 1, 3, 2, 4, 1, 28, 2, 4, 7, 1, 1, 3, 23, 1, 5, 12, 8, 5, 1, 1, 1, 3, 1, 2, 3, 1, 2, 1, 27, 4, 3, 1, 1, 2, 1, 82, 2, 3, 10, 2, 3, 1, 2, 5, 2, 1, 1, 4, 6, 4, 1, 3, 1, 4, 18, 1, 2, 1, 2, 6, 2, 1, 1, 1, 2, 2, 5 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..95.

PROG

(PARI) contfrac(prodeulerrat(1 - 1/(p^2+p-1))) \\ Amiram Eldar, Mar 14 2021

CROSSREFS

Cf. A065480.

Sequence in context: A280420 A051459 A073581 * A077772 A083150 A066146

Adjacent sequences:  A078078 A078079 A078080 * A078082 A078083 A078084

KEYWORD

nonn,cofr

AUTHOR

Benoit Cloitre, Dec 02 2002

STATUS

approved

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Last modified September 21 09:52 EDT 2021. Contains 347597 sequences. (Running on oeis4.)