578096

Appears in sequences

• First subdiagonal of triangular array T: T(j,1) = 1 for ((j-1) mod 8) < 4, else 0; T(j,k) = T(j-1,k-1) + T(j,k-1) for 2 <= k <= j.at n=20A131075
• a(n) = 9^n+6^n-1^n.at n=6A155647