a(1)=1, a(n) is smallest multiple of n with same beginning as a(n-1).

A045874

a(1)=1, a(n) is smallest multiple of n with same beginning as a(n-1).

Terms

    a(0) =1a(1) =10a(2) =102a(3) =1020a(4) =1020a(5) =1020a(6) =10206a(7) =102064a(8) =1020645a(9) =10206450a(10) =102064501a(11) =1020645012a(12) =10206450124

External references