2924640

Appears in sequences

• Number of ways to place 3 nonattacking nightriders on an n X n toroidal board.at n=17A196813
• Expansion of e.g.f. 1/(1 - x - x^2)^(x^2).at n=9A371157
• E.g.f. satisfies A(x) = 1/(1 + x^2*log(1 - x*A(x))).at n=9A371302