312678

Appears in sequences

• Number of 0..5 arrays x(0..n) of n+1 elements with zero n-1st differences.at n=17A200079
• a(0) = 0, a(1) = 1 and a(n) = 6*a(n-1)/(n-1) + 16*a(n-2) for n > 1.at n=9A304944