a(n) = a(n-1)^2/2 + 5/2, a(0) = 1.A232806a(n) = a(n-1)^2/2 + 5/2, a(0) = 1.Terms a(0) =1a(1) =3a(2) =7a(3) =27a(4) =367a(5) =67347a(6) =2267809207External referencesoeis: A232806