169336

Appears in sequences

• Number of factorization patterns of polynomials of degree n over integers.at n=27A006171
• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 51 ones.at n=26A031819
• Triangle read by rows: T(n,k) is the number of achiral combinatorial maps with n edges and genus k, 0 <= k <= floor(n/2).at n=27A380234