-1490

Appears in sequences

• Generalized Catalan numbers C(-7; n).at n=4A064329
• a(n) = -3*a(n-1) + 5*a(n-2), n > 1; a(0)=1, a(1)=-5.at n=5A152185
• G.f.: Product_{n>=1} (1 - 2*x^n)^3.at n=18A322216