OFFSET
0,3
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..350
FORMULA
Recursion: see Maple program.
MAPLE
a:= proc(n) option remember; `if`(n<3, n^n,
((105*n^3-252*n^2+175*n-36) *a(n-1) -2*(n-1)^2 *a(n-2)
+2*(5*n-2)*(n-1)^2*(n-2)^2*a(n-3)) / (4*(2*n-1)*(5*n-7)))
end:
seq(a(n), n=0..20); # Alois P. Heinz, Jul 20 2014
CROSSREFS
KEYWORD
nonn
AUTHOR
Chad Brewbaker, Mar 17 2014
EXTENSIONS
a(8)-a(11) from Alois P. Heinz, Mar 17 2014
a(12)-a(19) from Alois P. Heinz, Jul 20 2014
STATUS
approved