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.

A331480 Decimal expansion of arcsin(2/Pi).

Original entry on oeis.org

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

Views

Author

Jianing Song, Jan 18 2020

Keywords

Examples

			0.69010709137453995200...
		

Crossrefs

Cf. A060294 (decimal expansion of 2/Pi), A275477 (arccos(2/Pi)), A232247 (arctan(2/Pi)), A232182 (arccot(2/Pi)).

Programs

  • Mathematica
    First@RealDigits@N[ArcSin[2/Pi], 120]
  • PARI
    default(realprecision, 100); asin(2/Pi)

Formula

Equals Pi/2 - A275477.