A078079 Continued fraction expansion of Product_{p prime}(1 - p/(p^3-1)).

0, 1, 1, 2, 1, 3, 1, 3, 1, 2, 1, 77, 2, 1, 1, 10, 2, 1, 1, 1, 7, 1, 1, 3, 3, 5, 5, 3, 1, 1, 35, 1, 8, 3, 1, 2, 1, 3, 2, 5, 3, 1, 14, 1, 2, 1, 15, 1, 8, 1, 2, 3, 6, 1, 3, 1, 7, 1, 1, 2, 1, 1, 24, 1, 2, 3, 14, 23, 1, 9, 1, 46, 7, 1, 1, 5, 1, 1, 14, 2, 1, 20, 2, 1, 6, 1, 1, 2, 2, 1, 1, 1, 35, 1

Offset

1,4

Links

Table of n, a(n) for n=1..94.

Emanuele Munarini and Norma Zagaglia Salvi, Binary strings without zigzags, Séminaire Lotharingien de Combinatoire, B49h (2004), 15 pp.

Prog

(PARI) contfrac(prodeulerrat(1 - p/(p^3-1))) \\ Amiram Eldar, Mar 17 2021

Crossrefs

Cf. A065478.

Sequence in context: A111963 A206923 A328570 * A328049 A328050 A335620

Adjacent sequences: A078076 A078077 A078078 * A078080 A078081 A078082

Keyword

nonn,cofr

Author

Benoit Cloitre, Dec 02 2002

Status

approved