542885

Appears in sequences

• a(n) = a(n-1) + a(n-2) + 1 for n > 1, a(0)=1, a(1)=5.at n=25A022319
• a(n) = A014217(n+3) - A014217(n).at n=25A153263
• Expansion of g.f. 5*(1-x-x^2)/((1+x)*(1-3*x+x^2)).at n=13A189316