n is odd and divisible by number of divisors of n and sum of digits of n.

Terms

a(0) =1a(1) =9a(2) =225a(3) =441a(4) =1521a(5) =2025a(6) =2601a(7) =12321a(8) =40401a(9) =62001a(10) =99225a(11) =103041a(12) =251001a(13) =321489a(14) =585225a(15) =893025a(16) =1022121a(17) =1108809a(18) =1212201a(19) =1320201a(20) =1946025a(21) =2368521a(22) =2480625a(23) =2772225a(24) =3101121a(25) =3744225a(26) =4473225a(27) =4862025a(28) =5517801a(29) =6125625