467767

Appears in sequences

• Second differences of Bell numbers.at n=9A011965
• A000110 / (1,2,3,...): (convolved with (1,2,3,...) = Bell numbers).at n=10A154108
• a(n) = 9*a(n-1) - 2*a(n-2), with a(0)=0, a(1)=1.at n=7A190979