64295

Appears in sequences

• a(n) = n*(3*n^2 - 1)/2.at n=35A004188
• a(n) = Sum_{k=0..floor(n/3)} C(n-k, 2*k) * 2^k*3^(n-3*k).at n=9A099780
• Numbers n such that n and n+-1 have 4 distinct prime factors.at n=9A168628
• Partial sums of A024012.at n=15A174120
• Truncated octahedron with faces of centered polygons.at n=17A193228
• Number T(n,k) of partitions of [n] having exactly k blocks of size at least three; triangle T(n,k), n>=0, 0<=k<=floor(n/3), read by rows.at n=29A355144