A021222 Decimal expansion of 1/218.

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

Offset

0,3

Links

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

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

Formula

a(n) = a(n-1) - a(n-54) + a(n-55). - Wesley Ivan Hurt, Feb 13 2026

Mathematica

Join[{0, 0}, RealDigits[1/218, 10, 120][[1]]] (* Harvey P. Dale, Feb 28 2013 *)

Prog

(PARI) 1/218. \\ Charles R Greathouse IV, May 28 2026

Crossrefs

Cf. A021113, A021440, A021876.

Sequence in context: A296495 A020804 A372788 * A132023 A378909 A379444

Adjacent sequences: A021219 A021220 A021221 * A021223 A021224 A021225

Keyword

nonn,cons,easy

Author

N. J. A. Sloane

Status

approved