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.

A157299 Decimal expansion of (82611+44030*sqrt(2))/233^2.

Original entry on oeis.org

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

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Author

Klaus Brockhaus, Apr 11 2009

Keywords

Comments

lim_{n -> infinity} b(n)/b(n-1) = (82611+44030*sqrt(2))/233^2 for n mod 3 = 0, b = A129625.
lim_{n -> infinity} b(n)/b(n-1) = (82611+44030*sqrt(2))/233^2 for n mod 3 = 1, b = A157297.

Examples

			(82611+44030*sqrt(2))/233^2 = 2.66865890237962340434...
		

Crossrefs

Cf. A129625, A157297, A002193 (decimal expansion of sqrt(2)), A156035 (decimal expansion of 3+2*sqrt(2)), A157298 (decimal expansion of (251+66*sqrt(2))/233).

Programs

  • Magma
    (82611+44030*Sqrt(2))/233^2; // G. C. Greubel, Mar 29 2018
  • Mathematica
    RealDigits[(82611+44030Sqrt[2])/233^2,10,120][[1]] (* Harvey P. Dale, Feb 25 2014 *)
  • PARI
    (82611+44030*sqrt(2))/233^2 \\ G. C. Greubel, Mar 29 2018
    

Formula

(82611+44030*sqrt(2))/233^2 = (370+119*sqrt(2))/(370-119*sqrt(2))
= (3+2*sqrt(2))*(22-3*sqrt(2))^2/(22+3*sqrt(2))^2.