Number of (n+1)X(2+1) 0..3 arrays with row and column sums nondecreasing, and no adjacent elements equal.
A233029
Number of (n+1)X(2+1) 0..3 arrays with row and column sums nondecreasing, and no adjacent elements equal.
Terms
- a(0) =96a(1) =642a(2) =3132a(3) =16296a(4) =77353a(5) =337570a(6) =1459711a(7) =6131600a(8) =25014797a(9) =100647020a(10) =399073108a(11) =1561490768a(12) =6050110218a(13) =23239177456a(14) =88590795541a(15) =335553550058
External references
- oeis: A233029