103199

Appears in sequences

• Smallest number that takes n steps to reach 0 under "k->max product of 2 numbers whose concatenation is k".at n=25A035932
• Least k such that k*10^n-9, k*10^n-7, k*10^n-3 and k*10^n-1 are all prime.at n=18A064432
• Number of maximal matchings in the wheel graph on n nodes.at n=31A284709