41425

Appears in sequences

• Expansion of tan(x)*cos(tanh(x)).at n=4A009730
• Expansion of tanh(x).exp(tan(x)).at n=9A009830
• Sides of integer Heronian triangles [A068967(n), prime(A068967(n)), a(n)] with area A068969(n).at n=26A068968
• Numbers k such that 4*k + {1, 3, 7, 9, 13, 19} are all prime.at n=2A254288
• Numbers n such that 4n+1, 4n+3, 4n+7, 4n+9 and 4n+13 are prime.at n=7A254376