649089

Appears in sequences

• a(n) = 9^n + 7^n - 1.at n=6A155656
• Number of nX7 arrays of permutations of 7 copies of 0..n-1 with every element equal to or 1 greater than any west or northeast neighbors modulo n and the upper left element equal to 0.at n=5A267741
• Number of 6Xn arrays containing n copies of 0..6-1 with every element equal to or 1 greater than any west or northeast neighbors modulo 6 and the upper left element equal to 0.at n=6A267745