A084118 Continued fraction expansion of Product_{k>=0} (1 - 1/(2^k+1)).

0, 4, 1, 3, 3, 7, 2, 1, 1, 3, 3, 18, 9, 15, 1, 13, 3, 1, 1, 1, 4, 3, 1, 3, 1, 1, 1, 1, 3, 8, 18, 2, 3, 2, 14, 3, 1, 2, 1, 7, 1, 300, 1, 3, 1, 17, 1, 1, 1, 4, 3, 9, 2, 3, 4, 1, 25, 6, 12, 3, 1, 1, 3, 4, 2, 6, 28, 2, 11, 2, 3, 1, 2, 3, 18, 9, 1, 1, 3, 2, 22, 165, 8, 5, 13, 7, 1, 6, 1, 2, 3, 5, 1, 14, 6, 1

Offset: 0

Author

Benoit Cloitre, Jun 19 2003

Keywords

• cofr
• nonn

Comments

c/4 where c is the constant defined in A085011.

Crossrefs

Cf. A085011.

Programs

PARI

contfrac(prod(k=0,1000,1-1./(2^k+1)))

Formula

Product_{k>=0} (1 - 1/(2^k+1)) = 0.2097112208975537988549780538514871...