102345678

Appears in sequences

• Integers which have more distinct digits than any smaller number.at n=8A038378
• Smallest multiple of n using all the digits other than used by n, or 0 if no such number exists.at n=8A078249
• Numbers with all but one decimal digit.at n=0A116670
• a(n) is the least natural number not included earlier having all decimal digits except the digits in n; if n is pandigital or zeroless pandigital, a(n) is simply the least natural number not included earlier.at n=9A288941
• a(n) is the smallest k > 0 such that exactly n distinct permutations of the digits of k, all having the same number of digits as k, are perfect squares (no leading zeros allowed).at n=21A387882