Number of length n+2 0..7 arrays with the sum of second differences multiplied by some arrangement of +-1 equal to zero.
A250560
Number of length n+2 0..7 arrays with the sum of second differences multiplied by some arrangement of +-1 equal to zero.
Terms
- a(0) =32a(1) =480a(2) =5446a(3) =63400a(4) =695890a(5) =6924692a(6) =62245658a(7) =522997696a(8) =4258085394a(9) =34261234132a(10) =274598186760
External references
- oeis: A250560