a(1) = 1; a(2) = 2; a(3) = 3; a(n+3) = a(n+2)*a(n+1) + a(n+1)*a(n) + a(n)*a(n+2).
A066046
a(1) = 1; a(2) = 2; a(3) = 3; a(n+3) = a(n+2)*a(n+1) + a(n+1)*a(n) + a(n)*a(n+2).
Terms
- a(0) =1a(1) =2a(2) =3a(3) =11a(4) =61a(5) =887a(6) =64535a(7) =61233287
External references
- oeis: A066046