53967

Appears in sequences

• G.f.: (1+x+x^2+x^3)/(1-x^2-2*x^3-x^4+x^6).at n=24A234273
• Cogrowth sequence of the 20-element dicyclic group Dic20 = <S,T | S^5, T^4, STST^3>.at n=20A378276