A113657 Decimal expansion of 1/1089.

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

Offset

0,4

Comments

This sequence can also be produced by Sqrt[11111111111111111111111111111111111111111111] =11*Sqrt[91827364554637281910009182736455463728191], where Sqrt is the square root. In fact we found this from the square root and later looked for the same sequence in the expansion.

Comment from Eric Desbiaux, Apr 08 2008: Also, of course, decimal expansion of 9/9801. Note that

99/9801 = 0.0101010101010101010101...,

9999/9801 = 1.02020202020202020202020...,

999999/9801 = 102.0303030303030303030303...,

99999999/9801 = 10203.040404040404040404040404..., etc.

Links

Table of n, a(n) for n=0..97.

Example

0.0009182736455463728191000918273645546372819100091827364554...

Mathematica

m = 21; Sqrt[Apply[Plus, Table[11*100^k, {k, 0, m}]]]

Crossrefs

Cf. A137301-A137304.

Cf. A021895, A021085.

Sequence in context: A182494 A065444 A010169 * A098783 A234468 A011111

Adjacent sequences: A113654 A113655 A113656 * A113658 A113659 A113660

Keyword

easy,nonn,cons

Author

Ryohei Miyadera, Jan 16 2006

Extensions

Edited by N. J. A. Sloane, May 15 2008, at the suggestion of R. J. Mathar.

Status

approved