a(n) is the smallest multiple of n formed by the concatenation 1,2,3,...,k for some k.

A334620

a(n) is the smallest multiple of n formed by the concatenation 1,2,3,...,k for some k.

Terms

    a(0) =1a(1) =12a(2) =12a(3) =12a(4) =12345a(5) =12a(7) =123456a(8) =12345678a(9) =12345678910a(11) =12

External references