A133390 Period 18: repeat 1, 4, 7, 2, 2, 5, 4, 1, 1, 8, 5, 2, 7, 7, 4, 5, 8, 8.

1, 4, 7, 2, 2, 5, 4, 1, 1, 8, 5, 2, 7, 7, 4, 5, 8, 8, 1, 4, 7, 2, 2, 5, 4, 1, 1, 8, 5, 2, 7, 7, 4, 5, 8, 8, 1, 4, 7, 2, 2, 5, 4, 1, 1, 8, 5, 2, 7, 7, 4, 5, 8, 8, 1, 4, 7, 2, 2, 5, 4, 1, 1, 8, 5, 2, 7, 7, 4, 5, 8, 8, 1, 4, 7, 2, 2, 5, 4, 1, 1, 8, 5, 2, 7, 7, 4, 5, 8, 8

Offset

0,2

Comments

Disordered, three times 1, 2, 4, 5, 7, 8.

Links

Table of n, a(n) for n=0..89.

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

Formula

Sum of digits mod 9 of 1, 4, 7, 11, 20, A130625. Digits of 1/7, A020806 or A029898, 1, 1, 2, 4, 8.

Mathematica

PadRight[{}, 18*5, {1, 4, 7, 2, 2, 5, 4, 1, 1, 8, 5, 2, 7, 7, 4, 5, 8, 8}] (* Harvey P. Dale, Nov 06 2011 *)

Prog

(PARI) for(i=1, 9, print1("1, 4, 7, 2, 2, 5, 4, 1, 1, 8, 5, 2, 7, 7, 4, 5, 8, 8, ")) \\ Charles R Greathouse IV, Jun 02 2011

Crossrefs

Sequence in context: A257817 A246710 A139346 * A201403 A011351 A132026

Adjacent sequences: A133387 A133388 A133389 * A133391 A133392 A133393

Keyword

nonn,easy,less

Author

Paul Curtz, Nov 23 2007

Status

approved