179214

Appears in sequences

• Number of different sets ("cut sets") of triangles a regular (n+2)-gon can be dissected into; two triangulations of an (n+2)-gon are equal if all numbers of congruent triangles coincide.at n=21A033961
• Number of nX4 0..1 arrays with every element unequal to 0, 1, 3, 6 or 8 king-move adjacent elements, with upper left element zero.at n=15A305478
• a(n) = Sum_{k=1..n} k^3 * tau(k), where tau is A000005.at n=19A320895