Smallest positive number formed by a set of digits whose product = sum of the digits.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =6a(6) =7a(7) =8a(8) =9a(9) =22a(10) =123a(11) =1124a(12) =11125a(13) =11133a(14) =11222a(15) =111126a(16) =1111127a(17) =1111134a(18) =11111128a(19) =11111223a(20) =111111129a(21) =111111135a(22) =1111111144a(23) =11111111136a(24) =11111111224a(25) =111111112222