a(1) = 3, a(n) is the smallest multiple of a(n-1) that contains all the digits of a(n-1), or which can be obtained by inserting digits anywhere in a permutation of digits of a(n-1) (prefix, suffix or insertion). Zeros are not to be suffixed. a(n) is not divisible by 10.

A077698

a(1) = 3, a(n) is the smallest multiple of a(n-1) that contains all the digits of a(n-1), or which can be obtained by inserting digits anywhere in a permutation of digits of a(n-1) (prefix, suffix or insertion). Zeros are not to be suffixed. a(n) is not divisible by 10.