Number of arrays of n+2 integers in -6..6 with sum zero and adjacent elements differing in absolute value.

A202960

Number of arrays of n+2 integers in -6..6 with sum zero and adjacent elements differing in absolute value.

Terms

    a(0) =90a(1) =972a(2) =9010a(3) =90604a(4) =941086a(5) =9824176a(6) =102972822a(7) =1085236504a(8) =11493823804a(9) =122199247152

External references