11208704

Appears in sequences

• a(n)*a(n+3) - a(n+1)*a(n+2) = 2^n, given a(0)=1, a(1)=1, a(2)=3.at n=21A080878
• Trinomial transform of the Fibonacci numbers (A000045).at n=10A082761
• Row sums of triangle A099602, in which row n equals the inverse binomial transform of column n of the triangle of trinomial coefficients (A027907).at n=20A099603
• Number of length-n phone numbers that can be dialed by a chess knight on a 0-9 keypad that starts on any number and takes n-1 steps.at n=17A327692