338208

Appears in sequences

• Number of binary strings of length n with equal numbers of 0110 and 1001 substrings.at n=20A164177
• Count of interior bounded regions in a regular 2n-sided polygon dissected by all diagonals parallel to sides.at n=36A165217
• Number of distinct intersections among all circles that can be constructed on vertices of an n-sided regular polygon, using only a compass.at n=38A331702