a(n+3) = 6*a(n) - 5*a(n+2), a(0) = -1, a(1) = 5, a(2) = -25.
A110212
a(n+3) = 6*a(n) - 5*a(n+2), a(0) = -1, a(1) = 5, a(2) = -25.
Terms
- a(0) =-1a(1) =5a(2) =-25a(3) =119a(4) =-565a(5) =2675a(6) =-12661a(7) =59915a(8) =-283525a(9) =1341659a(10) =-6348805a(11) =30042875a(12) =-142164421a(13) =672729275a(14) =-3183389125a(15) =15063959099a(16) =-71283419845a(17) =337316764475
External references
- oeis: A110212