A021445 Decimal expansion of 1/441.

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

Offset

0,3

Comments

Periodic with period length 42, g.f. denominator = (1-x^42)/((-1)*(1+x)*(1+x+x^2)). - Ray Chandler, Jul 24 2025

Links

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

Index entries for linear recurrences with constant coefficients, signature (2,-2,1,0,0,-1,2,-2,1,0,0,-1,2,-2,1,0,0,-1,2,-2,1,0,0,-1,2,-2,1,0,0,-1,2,-2,1,0,0,-1,2,-2,1).

Mathematica

Join[{0, 0}, RealDigits[1/441, 10, 120][[1]]] (* Harvey P. Dale, Jan 16 2014 *)

Crossrefs

Sequence in context: A210865 A210861 A062073 * A011145 A177852 A338837

Adjacent sequences: A021442 A021443 A021444 * A021446 A021447 A021448

Keyword

nonn,cons

Author

N. J. A. Sloane

Status

approved