297775000

Appears in sequences

• a(n) = 3*a(n-1) - a(n-2) with a(0) = 1, a(1) = 8.at n=19A055273
• Expansion of g.f. (3-x)*(1+3*x+x^2)/((1-x-x^2)*(1+x-x^2)).at n=37A099256