A078077 Continued fraction expansion of Product_{p prime} (1 + 1/(p^2+p-1)).

1, 2, 2, 1, 1, 1, 1, 4, 2, 1, 1, 3, 703, 2, 1, 1, 1, 3, 5, 1, 1, 4, 10, 2, 10, 2, 1, 2, 1, 4, 4, 11, 5, 1, 2, 1, 1, 30, 37, 2, 75, 1, 1, 8, 5, 1, 1, 7, 44, 280, 5, 1, 1, 1, 1, 2, 1, 1, 3, 1, 1, 3, 1, 9, 94, 1, 127, 2, 2, 7, 3, 3, 3, 6, 2, 1, 705, 24, 2, 7, 2, 2, 1, 3, 7, 1, 1, 3, 40, 6, 1

Offset

0,2

Links

Table of n, a(n) for n=0..90.

Prog

(PARI) contfrac(prodeulerrat(1 + 1/(p^2+p-1))) \\ Amiram Eldar, Mar 15 2021

Crossrefs

Cf. A065489 (decimal expansion).

Sequence in context: A387409 A152905 A096601 * A078082 A380580 A307090

Adjacent sequences: A078074 A078075 A078076 * A078078 A078079 A078080

Keyword

nonn,cofr

Author

Benoit Cloitre, Dec 02 2002

Extensions

Offset changed by Andrew Howroyd, Jul 05 2024

Status

approved