69298

Appears in sequences

• Number of quasi-alternating permutations of length n.at n=7A001758
• Triangle read by rows: T(n,k) is the number of permutations of [n] with k alternating runs (n>=2, k>=1).at n=34A059427
• Number of (n+1) X (4+1) 0..1 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.at n=15A250725
• Array read by upwards antidiagonals: A(n, k) = index of prime(k)^n in A098550.at n=38A253609