Numbers whose digit product equals the number of their digits.

Terms

a(0) =1a(1) =12a(2) =21a(3) =113a(4) =131a(5) =311a(6) =1114a(7) =1122a(8) =1141a(9) =1212a(10) =1221a(11) =1411a(12) =2112a(13) =2121a(14) =2211a(15) =4111a(16) =11115a(17) =11151a(18) =11511a(19) =15111a(20) =51111a(21) =111116a(22) =111123a(23) =111132a(24) =111161a(25) =111213a(26) =111231a(27) =111312a(28) =111321a(29) =111611