494081

Appears in sequences

• Expansion of exp(tan(tan(x))).at n=9A009240
• Expansion of sinh(tan(tan(x))) (odd powers only).at n=4A009603
• Zero together with the partial sums of A056640.at n=41A274772
• Expansion of (g/(1 + x*g^2))^2, where g = 1+x*g^4 is the g.f. of A002293.at n=8A391608