62752

Appears in sequences

• Number of nonnegative integer 3 X 3 matrices with sum of elements equal to n, under action of dihedral group of the square D_4.at n=15A054343
• a(n) = a(n-1) + 3*a(n-2) -2*a(n-3) - 2*a(n-4), where a(0) = 1, a(1) = 3, a(2) = 4, a(3) = 5.at n=26A295718
• Expansion of Product_{k>=0} (1 + x^(4^k))^(4^(k+1)).at n=25A321355
• Expansion of Product_{k>=0} (1 + x^(4^k))^(4^(k+1)).at n=27A321355
• Number of edges in a regular 2n-gon when all vertices are connect by straight lines except for the n lines joining diametrically opposite vertices.at n=15A368815