316407

Appears in sequences

• a(n) = (4*3^n - 5*2^n + (-2)^n)/20.at n=13A167910
• Smallest number of the form k^2 + k + 1 with n distinct prime divisors.at n=5A174967
• Central polygonal numbers that are nontrivially the product of two central polygonal numbers.at n=32A203173
• Sum over all Motzkin paths of length n of products over all peaks p of (x_p+n*y_p)/y_p, where x_p and y_p are the coordinates of peak p.at n=9A266386