18151220
domain: N
Appears in sequences
- Number of nX3 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order.at n=6A278722
- Number of nX7 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order.at n=2A278726
- T(n,k)=Number of nXk 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order.at n=38A278727