OFFSET
0,2
LINKS
Nathaniel Johnston, Table of n, a(n) for n = 0..301
Index entries for linear recurrences with constant coefficients, signature (4,-4,-2,4,0,-1).
FORMULA
G.f.: -(2*x^4-6*x^3+2*x^2+2*x-1) / ((x-1)^2*(x^2+x-1)^2). - Colin Barker, Jul 11 2015
MAPLE
with(combinat):A188538:=proc(n) local m, s; s:=1:for m from 1 to n do s:=s+1+fibonacci(n)-fibonacci(m)-fibonacci(n-m):od; return s; end: # Nathaniel Johnston, Apr 03 2011
PROG
(PARI) Vec(-(2*x^4-6*x^3+2*x^2+2*x-1)/((x-1)^2*(x^2+x-1)^2) + O(x^50)) \\ Colin Barker, Jul 11 2015
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Apr 03 2011
EXTENSIONS
Terms after a(10) from Nathaniel Johnston, Apr 03 2011
STATUS
approved