OFFSET
1,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (8,-8,8,-7).
FORMULA
a(n) = 8a(n-1) - 8a(n-2) + 8a(n-3) - 7a(n-4).
G.f.: ( x*(1-x+3*x^2) ) / ( (x-1)*(7*x-1)*(x^2+1) ). - R. J. Mathar, May 04 2015
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
STATUS
approved