180750

Appears in sequences

• Number of 7-step one space for components leftwards or up, two space for components rightwards or down asymmetric quasi-queen's tours (antidiagonal moves become knight moves) on an n X n board summed over all starting positions.at n=4A187862
• Number of strings of length n over a 6-letter alphabet that do not begin with a palindrome.at n=7A252699
• Numbers k such that sigma(k) = psi(k) + tau(k)^2 + pi(k).at n=2A390947