71361

Appears in sequences

• Denominators of continued fraction convergents to sqrt(207).at n=14A041385
• Denominators of continued fraction convergents to sqrt(828).at n=10A042599
• a(n) = 6*a(n-1) - 3*a(n-2), a(0)=1, a(1)=3.at n=7A084120
• Let v[0]={0,1,1,2}, v[n]=M.v[n-1], where M={{0, 1, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 1}, {1, 10, 19, 1}}; then a(n) =v[n][[1]] (the first term).at n=9A104095