104042

Appears in sequences

• Number of 1-sided strip polypons with n cells.at n=35A151532
• G.f.: x^2*(x+1)^2/(x^3+x^2-1)^2.at n=33A228364
• Expansion of Product_{k>=1} ((1 + x^k)/(1 - x^k))^phi(k), where phi is the Euler totient function A000010.at n=19A318975
• Number of edges in a figure made up of a row of n adjacent congruent rectangles upon drawing diagonals of all possible rectangles.at n=23A331757