54414

Appears in sequences

• Number of (n+1) X 3 0..1 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) such that rows of b(i,j) and columns of c(i,j) are lexicographically nondecreasing.at n=11A203446
• Number of length-n binary words that can be written as the concatenation of two unbordered binary words.at n=15A306742
• Number of squarefree parts in the partitions of n into 9 parts.at n=45A309463