A144408 Last digit of A135266(n).

0, 1, 5, 9, 0, 2, 6, 9, 9, 1, 6, 0, 0, 1, 5, 9, 0, 2, 6, 9, 9, 1, 6, 0, 0, 1, 5, 9, 0, 2, 6, 9, 9, 1, 6, 0, 0, 1, 5, 9, 0, 2, 6, 9, 9, 1, 6, 0, 0, 1, 5, 9, 0, 2, 6, 9, 9, 1, 6, 0, 0, 1, 5, 9, 0, 2, 6, 9, 9, 1, 6, 0, 0, 1, 5, 9, 0, 2, 6, 9, 9, 1, 6, 0, 0, 1, 5, 9, 0, 2, 6, 9, 9, 1, 6, 0, 0, 1, 5, 9, 0, 2

Offset

0,3

Links

Table of n, a(n) for n=0..101.

Formula

Period 12: a(n+12)=a(n).

Sums of periodic trisections: a(3n)+a(3n+3)+a(3n+6)+a(3n+9) = a(3n+1)+a(3n+4)+a(3n+7)+a(3n+10) = a(3n+2)+a(3n+5)+a(3n+8)+a(3n+11) = 16.

G.f.: x(6x^7-5x^6+8x^5+6x^4-8x^3+4x^2+4x+1)/((1-x)(1+x)(x^2+1)(x^2-x+1)(x^4-x^2+1)). - R. J. Mathar, Dec 02 2008

Crossrefs

Sequence in context: A249205 A344966 A294613 * A371323 A019636 A269979

Adjacent sequences: A144405 A144406 A144407 * A144409 A144410 A144411

Keyword

nonn,base

Author

Paul Curtz, Sep 30 2008

Extensions

Edited by R. J. Mathar, Dec 02 2008

Status

approved