184920

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 43.at n=9A031721
• Number T(n,k) of sequences in {1,...,n}^n with longest increasing subsequence of length k; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=30A245667
• Number of sequences in {1,...,n}^n with longest increasing subsequence of length two.at n=5A268869
• a(n) = A115004(2n)/4.at n=22A331760