cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A249649 Decimal expansion of Integral_{x = 0..1} Li_3(x) dx, where Li_3 is the trilogarithm function.

Original entry on oeis.org

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

Views

Author

Jean-François Alcover, Nov 03 2014

Keywords

Examples

			0.5571228363113678489273229948654248015460363911337...
		

Crossrefs

Programs

  • Mathematica
    RealDigits[1 - Zeta[2] + Zeta[3], 10, 102] // First

Formula

Integral_{x = 0..1} Li_3(x) dx = 1 - zeta(2) + zeta(3) = 1 - Pi^2/6 + zeta(3).
Compare with the same integral of the dilogarithm:
Integral_{x = 0..1} Li_2(x) dx = zeta(2) - 1 = Pi^2/6 - 1 = 0.644934...
Equals Sum_{n >= 1} 1/(n^4 + n^3). - Peter Bala, Aug 04 2025