Number of arrays of n+2 integers in -7..7 with sum zero and adjacent elements differing in absolute value.
A202961
Number of arrays of n+2 integers in -7..7 with sum zero and adjacent elements differing in absolute value.
Terms
- a(0) =128a(1) =1576a(2) =17296a(3) =207184a(4) =2537024a(5) =31155004a(6) =384996502a(7) =4786979780a(8) =59791891464a(9) =749603860520
External references
- oeis: A202961