Smallest nontrivial multiple of n whose digit sum is the same as that of the digit sum of n. By nontrivial one means a(n) is not equal to n or (10^k)*n. 0 if no such number exists.
A087303
Smallest nontrivial multiple of n whose digit sum is the same as that of the digit sum of n. By nontrivial one means a(n) is not equal to n or (10^k)*n. 0 if no such number exists.
Terms
- a(0) =110a(1) =12a(2) =112a(3) =140a(4) =24a(5) =133a(6) =152a(7) =18a(8) =0a(9) =1001a(10) =300a(11) =2002a(12) =1022a(13) =60a(14) =304a(15) =323a(16) =36a(17) =361a(18) =1100a(19) =10101a(20) =1012a(21) =11201a(22) =312a(23) =700a(24) =1430a(25) =54a(26) =532a(27) =551a(28) =120a(29) =120001
External references
- oeis: A087303