a(n) = (a(n-1)*a(n-4) + a(n-5)*a(n-8)) / a(n-9), a(0) = ... = a(8) = 1.

A190783

a(n) = (a(n-1)*a(n-4) + a(n-5)*a(n-8)) / a(n-9), a(0) = ... = a(8) = 1.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =1a(8) =1a(9) =2a(10) =3a(11) =4a(12) =5a(13) =11a(14) =35a(15) =143a(16) =719a(17) =7919a(18) =138599a(19) =6606599a(20) =1187536349

External references