4061266

Appears in sequences

• a(n) = 3*a(n-1) - 2*a(n-2) + a(n-3), n > 3.at n=18A137584
• a(n) = a(n-1) + a(n-2) + a(n-4), with a(1)=1, a(2)=1, a(3)=3, a(4)=6.at n=27A259968