A330157 Decimal expansion of the sum of the reciprocals of A020330.

6, 7, 0, 1, 4, 5, 6, 8, 6, 2, 8, 3, 6, 3, 7, 6, 1, 3, 3, 5, 2, 0, 8, 8, 7, 7, 3, 8, 6, 4, 9, 6, 7, 8, 5, 8, 5, 3, 0, 7, 0, 6, 0, 1, 1, 3, 4, 9, 3, 0, 9, 4, 2, 1, 6, 0, 5, 3, 4, 8, 0, 9, 8, 1, 9, 1, 7, 3, 7, 3, 6, 2, 1, 4, 0, 3, 3, 6, 6, 4, 6, 3, 9, 8, 4, 3, 3

Offset

0,1

Comments

The sum is 0.67014568628363761... . It can be computed relatively efficiently using a variation of the method of Joseph S. Myers (see link).

Links

Table of n, a(n) for n=0..86.

Joseph S. Myers, Palindome reciprocal sums [sic], SeqFan Mailing List, June 21, 2014.

Example

0.67014568628363761...

Crossrefs

Cf. A020330.

Sequence in context: A113550 A370738 A221400 * A225962 A011098 A344428

Adjacent sequences: A330154 A330155 A330156 * A330158 A330159 A330160

Keyword

nonn,cons

Author

Jeffrey Shallit, Dec 03 2019

Status

approved