66185

Appears in sequences

• a(n) = 7*A000330(n).at n=30A169607
• G.f.: (t^5 + 2*t^4 + t^3 + 2*t^2 + t) / (t^6 + t^5 - 2*t^4 - 5*t^3 - 2*t^2 + t + 1).at n=20A180510