102850domain: NAppears in sequencesRestricted combinations.at n=23A006500a(n) = Fibonacci(n)*Fibonacci(n+1)^2.at n=8A066259a(n) = 31250*n - 22150.at n=3A157619Number of (n+1) X (2+1) arrays of permutations of 0..n*3+2 with each element having index change +-(.,.) 0,0 1,2 or 2,-2.at n=11A264054