-13039

Appears in sequences

• Expansion of e.g.f. tanh(sinh(x)+tan(x)) (odd powers only).at n=3A013051
• "Real rabbits": a(n) = Re(c(n)) where complex c(n) = a(n) + i*b(n) and c(0) = i, c(1) = -i, c(n) = c(n-1) + i*c(n-2).at n=28A058184