245008

Appears in sequences

• Expansion of e.g.f.: sin(sin(arctan(x))) (odd powers only).at n=4A012020
• Expansion of e.g.f. exp(tan(arcsin(x))).at n=9A012150
• Expansion of Product_{k>=1} ((1+x^k)/(1-x^k))^(Fibonacci(k)).at n=17A260916
• Number of polygons formed when every pair of vertices of a row of n adjacent congruent rectangles are joined by an infinite line.at n=29A344993