Number of 3 X n 0..2 matrices with row sums n and column sums 3 up to permutations of rows.
A377065
Number of 3 X n 0..2 matrices with row sums n and column sums 3 up to permutations of rows.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =30a(5) =166a(6) =981a(7) =5937a(8) =36646a(9) =229350a(10) =1451757a(11) =9274057a(12) =59699729a(13) =386798777a(14) =2520034050a(15) =16497343046a(16) =108454221206a(17) =715629888822
External references
- oeis: A377065