Number of length 7+2 0..n arrays with the sum of second differences multiplied by some arrangement of +-1 equal to zero.
A250566
Number of length 7+2 0..n arrays with the sum of second differences multiplied by some arrangement of +-1 equal to zero.
Terms
- a(0) =254a(1) =9611a(2) =127586a(3) =937817a(4) =4808120a(5) =18934449a(6) =62245658a(7) =176612641a(8) =448770968a(9) =1038399963a(10) =2233005894
External references
- oeis: A250566