OFFSET
0,2
LINKS
MAPLE
A059488 := proc(n) local i, j, t1; t1 := 2^(n^2 + 2*n); for i to 2*n + 1 do for j to 2*n + 1 do if i mod 2 <> 0 and j mod 2 = 0 then t1 := t1*(2*j - 2*i + 1)/(2*j - 2*i) end if end do end do; t1 end proc;
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Feb 04 2001
STATUS
approved