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.

Showing 1-3 of 3 results.

A106643 Positions of the increasingly larger partial quotients in A107952.

Original entry on oeis.org

1, 2, 3, 10, 45, 57, 77, 92, 97, 209, 215, 2423, 3849, 5289, 66555, 1347796, 1524713
Offset: 0

Views

Author

Robert G. Wilson v, May 31 2005

Keywords

A107950 Boling's constant, the decimal expansion of Sum_{i>=1} i(i+1) / (2*Product_{j=0..i-1} i!/j!).

Original entry on oeis.org

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

Views

Author

Robert G. Wilson v, May 28 2005

Keywords

Examples

			B=1.805917418986691013997505385851050680989652545909634282575958858...
		

Crossrefs

Programs

  • Mathematica
    RealDigits[ Sum[i(i + 1)/2/Product[i!/j!, {j, 0, i - 1}], {i, 14}], 10, 111][[1]]
    Clear[B]; B[m_] := B[m] = N[Sum[i*(1+i)/2*BarnesG[1+i]/i!^i, {i, 1, m}], 105]; m=2; While[B[m] != B[m-1], m++]; RealDigits[B[m]][[1]] (* Jean-François Alcover, Nov 18 2015 *)

A107951 Continued fraction expansion of Boling's constant.

Original entry on oeis.org

1, 1, 4, 6, 1, 1, 3, 1, 2, 5, 23, 3, 1, 1, 2, 1, 2, 1, 6, 2, 1, 5, 1, 12, 8, 2, 1, 1, 1, 4, 6, 1, 12, 6, 1, 1, 3, 1, 2, 2, 3, 1, 1, 1, 1, 25, 3, 2, 1, 1, 1, 3, 2, 1, 4, 3, 7, 36, 1, 3, 19, 1, 3, 11, 2, 7, 2, 4, 1, 6, 5, 20, 3, 1, 1, 4, 1, 84, 10, 4, 2, 1, 3, 3, 1, 1, 2, 1, 2, 1, 1, 1, 499, 2, 12, 1, 4, 857
Offset: 0

Views

Author

Robert G. Wilson v, May 28 2005

Keywords

Crossrefs

Cf. A107950 (decimal expansion), A105658, A107952.

Programs

  • Mathematica
    ContinuedFraction[ Sum[i(i + 1)/2/Product[i!/j!, {j, 0, i - 1}], {i, 20}]]

Extensions

Offset changed by Andrew Howroyd, Aug 03 2024
Showing 1-3 of 3 results.