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.

User: Spenser Talkington

Spenser Talkington's wiki page.

Spenser Talkington has authored 1 sequences.

A332982 Decimal expansion of Pi/exp(gamma).

Original entry on oeis.org

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

Author

Spenser Talkington, Mar 05 2020

Keywords

Comments

Arises in the weak-coupling BCS model of superconductors, from the integral Integral_{0..a} tanh(x)/x dx that approaches log(4*exp(gamma)*a/Pi) as a becomes large.

Examples

			1.7638769888620456906926621345433395350860272289667507023134353211210579125900...
		

Crossrefs

Cf. A000796 (Pi), A001113 (e), A001620 (Euler-Mascheroni constant), A073004 (exp(gamma)), A080130 (exp(-gamma)).

Programs

  • Mathematica
    RealDigits[Pi/E^(EulerGamma), 10, 100][[1]]
  • PARI
    Pi/exp(Euler) \\ Michel Marcus, Mar 28 2020