OFFSET
0,2
LINKS
Seiichi Manyama, Table of n, a(n) for n = 0..2000
Index entries for linear recurrences with constant coefficients, signature (2,1,4,1,-2,-1).
FORMULA
a(n) = 2*a(n-1) + a(n-2) + 4*a(n-3) + a(n-4) - 2*a(n-5) - a(n-6).
PROG
(PARI) N=66; x='x+O('x^N); Vec(1/(x^6+2*x^5-x^4-4*x^3-x^2-2*x+1))
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Feb 20 2019
STATUS
approved