a(n) divides the number formed by concatenating the sum of the digits of a(n) with a(n), by a factor not previously used.
A101171
a(n) divides the number formed by concatenating the sum of the digits of a(n) with a(n), by a factor not previously used.
Terms
- a(0) =1a(1) =12a(2) =15a(3) =18a(4) =25a(5) =45a(6) =75a(7) =125a(8) =1125a(9) =1875a(10) =5625a(11) =16875a(12) =140625a(13) =1171875
External references
- oeis: A101171