OFFSET
1,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (1,0,0,0,1,-1).
FORMULA
G.f. x^2*(2+x+x^2+2*x^3+x^4) / ( (x^4+x^3+x^2+x+1)*(x-1)^2 ). - R. J. Mathar, Oct 25 2011
a(n) = n + A057354(n-2). [Wesley Ivan Hurt, Jul 23 2013]
MAPLE
seq(k+floor((2/5)*(k-2)), k=1..70); # Wesley Ivan Hurt, Jul 23 2013
MATHEMATICA
LinearRecurrence[{1, 0, 0, 0, 1, -1}, {0, 2, 3, 4, 6, 7}, 60] (* Harvey P. Dale, May 08 2015 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved