-233017

Appears in sequences

• Inverse binomial transform of A131666 after removing A131666(0) = 0.at n=20A135258
• a(n) = 3*a(n-1) - 4*a(n-3), with a(0)=1, a(1)=2, a(2)=4, a(3)=7.at n=19A136299