47746

Appears in sequences

• Expansion of (1+x^2)*(1+x^5)*(1+x^8)/((1-x)*(1-x^2)*(1-x^3)*(1-x^4)*(1-x^5)*(1-x^6)*(1-x^7)*(1-x^8)*(1-x^9)*(1-x^10)).at n=39A069950
• Number of mobiles (cycle rooted trees) with n nodes and 2-colored internal (non-leaf) nodes.at n=9A108531
• Column 2 of triangle A128545; a(n) is the coefficient of q^(2n+4) in the central q-binomial coefficient [2n+4,n+2].at n=19A128552
• Number of chordless cycles in the n X n black bishop graph.at n=8A370210