17036776865
domain: N
Appears in sequences
- a(n) = 2*a(n-1) + a(n-3), with a(0)=1 and a(1)=2.at n=30A008998
- Pisot sequences E(4,9), P(4,9).at n=28A020708
- The Ca3 sums of the Pell-Jacobsthal triangle A013609.at n=12A180675
- Number of 3 X n 0..1 arrays with no element equal to fewer vertical neighbors than horizontal neighbors, with new values 0..1 introduced in row major order.at n=28A240784
- Expansion of x^2/(1 - 4*x - 4*x^2 - x^3).at n=17A293710