Concatenate n and the sum of factorials of the digits of n.

Terms

a(0) =1a(1) =11a(2) =22a(3) =36a(4) =424a(5) =5120a(6) =6720a(7) =75040a(8) =840320a(9) =9362880a(10) =102a(11) =112a(12) =123a(13) =137a(14) =1425a(15) =15121a(16) =16721a(17) =175041a(18) =1840321a(19) =19362881a(20) =203a(21) =213a(22) =224a(23) =238a(24) =2426a(25) =25122a(26) =26722a(27) =275042a(28) =2840322a(29) =29362882