301612

Appears in sequences

• Number of n X 3 0..3 arrays with rows and columns lexicographically nondecreasing read forwards and nonincreasing read backwards.at n=6A201976
• Number of n X 7 0..3 arrays with rows and columns lexicographically nondecreasing read forwards and nonincreasing read backwards.at n=2A201980
• T(n,k)=Number of nXk 0..3 arrays with rows and columns lexicographically nondecreasing read forwards and nonincreasing read backwards.at n=38A201981
• T(n,k)=Number of nXk 0..3 arrays with rows and columns lexicographically nondecreasing read forwards and nonincreasing read backwards.at n=42A201981