42708

Appears in sequences

• Largest n-digit number - largest n-digit triangular number.at n=10A095866
• a(0) = 2, a(1) = 2, and for n > 1, a(n) = a(n-1) + a((a(n-1) - 1) mod n).at n=33A145465
• Number of 7-element subsets of {1, 2, ..., n} having pairwise coprime elements.at n=24A186983