A390376 Decimal expansion of log(2)/2 - 1 + Sum_{p prime} log(p) / (p - 1)^2.

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

Offset

0,1

Links

Table of n, a(n) for n=0..89.

Dayoon Park, Robin Visser, Pavlo Yatsyna, and Jongheun Yoon, Asymptotics of n-universal lattices over number fields, arXiv:2510.26652 [math.NT], 2025. See p. 17.

Formula

Equals A345308 - A385647.

Example

0.573542395933442660674278629474850847026007522...

Crossrefs

Cf. A002162, A345308, A385647.

Sequence in context: A245741 A175473 A180079 * A019844 A155529 A374003

Adjacent sequences: A390373 A390374 A390375 * A390377 A390378 A390379

Keyword

nonn,cons

Author

Stefano Spezia, Nov 03 2025

Status

approved