3752892

Appears in sequences

• Expansion of 1/(1-3*x)^7; 7-fold convolution of A000244 (powers of 3).at n=7A036220
• a(n) = (0^n + 3^n*binomial(2*n,n))/2.at n=7A098401
• Integer areas of integer-sided triangles where the lengths of two of the sides are cubes.at n=18A329536