a(n) = (33^n - 1)/32.A218736a(n) = (33^n - 1)/32.Terms a(0) =0a(1) =1a(2) =34a(3) =1123a(4) =37060a(5) =1222981a(6) =40358374a(7) =1331826343a(8) =43950269320External referencesoeis: A218736