Number T(n,k) of matchings of size k in the n X n X n triangular grid; triangle T(n,k), n>=0, 0<=k<=floor(n*(n+1)/4), read by rows.
A288852
Number T(n,k) of matchings of size k in the n X n X n triangular grid; triangle T(n,k), n>=0, 0<=k<=floor(n*(n+1)/4), read by rows.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =3a(4) =1a(5) =9a(6) =15a(7) =2a(8) =1a(9) =18a(10) =99a(11) =193a(12) =108a(13) =6a(14) =1a(15) =30a(16) =333a(17) =1734a(18) =4416a(19) =5193a(20) =2331a(21) =240a(22) =1a(23) =45a(24) =825a(25) =8027a(26) =45261a(27) =151707a(28) =298357a(29) =327237
External references
- oeis: A288852