189035

Appears in sequences

• Triangular matrix, read by rows, that satisfies: T(n,k) = [T^4](n-1,k) when n>k>=0, with T(n,n) = (n+1).at n=10A102101
• Column 0 of triangular matrix A102101, which shifts upward to exclude the main diagonal under matrix fourth power.at n=4A102102
• T(n,k) is the number of unlabeled acyclic single-source automata with n transient states on a (k+1)-letter input alphabet.at n=17A128249