-7917

Appears in sequences

• a(n) = -a(n-1) - 2*a(n-2).at n=28A001607
• Expansion of e.g.f.: cosh(sinh(x)+log(x+1))=1+4/2!*x^2-6/3!*x^3+43/4!*x^4-170/5!*x^5...at n=7A013022
• Expansion of 1/(1 - 3*x + 4*x^2).at n=13A049072