120263

Appears in sequences

• Number of P_4-stable Berge perfect graphs on n nodes.at n=8A123442
• G.f. satisfies: A(x) = 1 + x^2 + x*A(x)^2.at n=11A176697
• a(n) = 27*(n - 6)^2 + 4*(n - 6)^3 = ((n - 6)^2)*(4*n + 3).at n=35A245032