Number of 4 X n 0..2 matrices with row sums n and column sums 4 up to permutations of rows.
A377066
Number of 4 X n 0..2 matrices with row sums n and column sums 4 up to permutations of rows.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =12a(4) =117a(5) =1421a(6) =20326a(7) =307063a(8) =4809897a(9) =77098437a(10) =1257981093a(11) =20817768368a(12) =348552520988
External references
- oeis: A377066