a(n) = a(n-1)^2/2 - 4 with a(0) = 6.A213681a(n) = a(n-1)^2/2 - 4 with a(0) = 6.Terms a(0) =6a(1) =14a(2) =94a(3) =4414a(4) =9741694External referencesoeis: A213681