60554

Appears in sequences

• a(n) = C(n+1) + n*C(n) where C = A000108 (Catalan numbers).at n=9A077587
• Number of (n+1) X 4 0..1 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) nondecreasing in column and row directions, respectively.at n=28A204646
• a(1)=0; for n>1, a(n) = 4*n^3 - 3*n^2 - 3*n + 4.at n=24A296363