1970896

Appears in sequences

• G.f.: 3/(1 + 2*sqrt(1-12*x)).at n=7A035610
• Duplicate of A035610.at n=7A089023
• Expansion of c(3*x^2)/(1-x*c(3*x^2)), c(x) the g.f. of A000108.at n=14A128386
• Cogrowth function of the group Baumslag-Solitar(7,7).at n=7A229649
• Cogrowth function of the group Baumslag-Solitar(8,8).at n=7A229650
• Cogrowth function of the group Baumslag-Solitar(9,9).at n=7A229651
• Cogrowth function of the group Baumslag-Solitar(10,10).at n=7A229652
• Cogrowth sequence of the Brin-Navas group B.at n=7A359705