4535608

Appears in sequences

• Number of (n+1)X(3+1) 0..3 arrays colored with the difference of the maximum and minimum in each 2X2 subblock.at n=2A236447
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the difference of the maximum and minimum in each 2X2 subblock.at n=12A236451
• G.f. A(x) satisfies: (1 + x)/(1 - x) = A(x)*A(x^2)^2*A(x^3)^3*A(x^4)^4* ... *A(x^k)^k* ...at n=42A307659