Sum of n and the sum of the factorials of its digits.

Terms

a(0) =2a(1) =4a(2) =9a(3) =28a(4) =125a(5) =726a(6) =5047a(7) =40328a(8) =362889a(9) =12a(10) =13a(11) =15a(12) =20a(13) =39a(14) =136a(15) =737a(16) =5058a(17) =40339a(18) =362900a(19) =23a(20) =24a(21) =26a(22) =31a(23) =50a(24) =147a(25) =748a(26) =5069a(27) =40350a(28) =362911a(29) =37