A021895 Decimal expansion of 1/891.

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

Offset

0,5

Comments

Sqrt(161616161616161616161616161616161616) = 12*sqrt(1122334455667789001122334455667789). - Ryohei Miyadera, Yosuke Ikeda, Yasushi Kondo, and Yasuhiko Sakaitani, Jan 16 2006

References

Albert H. Beiler, Recreations in the theory of numbers, New York, Dover, (2nd ed.) 1966. See p. 59.

Links

Table of n, a(n) for n=0..98.

Index entries for linear recurrences with constant coefficients, signature (0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1).

Formula

G.f.: x^2*(Sum_{i=0..17} floor((i+2)/2)*x^i + x^15 - 9*x^16*(1 + x))/(1 - x^18). - Stefano Spezia, Jul 30 2024

Mathematica

Join[{0, 0}, RealDigits[1/891, 10, 120][[1]]] (* Harvey P. Dale, Sep 26 2020 *)

Prog

(PARI) 1/891. \\ Charles R Greathouse IV, Apr 25 2016

Crossrefs

Cf. A004526.

Sequence in context: A025161 A373068 A350893 * A025160 A026831 A096740

Adjacent sequences: A021892 A021893 A021894 * A021896 A021897 A021898

Keyword

nonn,cons,easy

Author

N. J. A. Sloane

Status

approved