54627

Appears in sequences

• Expansion of 3*(1+x)/(1-2*x-5*x^2).at n=8A176812
• Number of nX3 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,3,1,1,1 for x=0,1,2,3,4.at n=11A197618
• Partial sums of A299285.at n=27A299286
• a(n) = [x^n] (1/(1 - x)^n)*Product_{k>=1} (1 + x^k).at n=9A304781