120717domain: NAppears in sequencesa(n) = Fibonacci(n) - n^2.at n=26A014283Alternate partial sums of the binomial coefficients C(4*n,n).at n=6A227995Number of (5+1) X (n+1) 0..2 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)+x(i-1,j) in the j direction.at n=10A250760