Number of arrays of 9 integers in -n..n with sum zero and adjacent elements differing in absolute value.
A202969
Number of arrays of 9 integers in -n..n with sum zero and adjacent elements differing in absolute value.
Terms
- a(0) =6a(1) =5908a(2) =229714a(3) =3020170a(4) =21274708a(5) =102972822a(6) =384996502a(7) =1196677486a(8) =3233011170a(9) =7831389294a(10) =17375280238a(11) =35875950626a(12) =69754837982a(13) =128899962066a(14) =228011800792a(15) =388342150524a(16) =639825818930
External references
- oeis: A202969