33308

Appears in sequences

• Numbers whose base-8 representation has exactly 6 runs.at n=17A043628
• a(1) = 1; a(n) for n > 1 is the smallest multiple of a(n-1) that begins with n concatenations of n.at n=2A078398
• Numbers n such that n^2048 + 1 is prime (a generalized Fermat prime).at n=12A088361
• Positions of hexagonal pyramidal numbers in the EKG sequence.at n=36A144080
• Number of n X 2 0..2 arrays with no element less than a strict majority of its horizontal, vertical, diagonal and antidiagonal neighbors.at n=7A231747
• T(n,k)=Number of nXk 0..2 arrays with no element less than a strict majority of its horizontal, vertical, diagonal and antidiagonal neighbors.at n=37A231753
• Expansion of g.f. A(x) satisfying 0 = Sum_{n>=0} (-1)^n * x^(n*(n-1)/2) * A(x)^(n^2) / Product_{k=2..n+2} (1 - x^k*A(x)^(2*k+1)).at n=7A363556