6010220

Appears in sequences

• Number of genus 3 rooted hypermaps with n darts.at n=9A214818
• Number of n X 2 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,0) or (-1,-1) and new values introduced in order 0..2.at n=22A275498
• Triangle read by rows: T(n,k) is the number of rooted hypermaps of genus k with n darts.at n=28A321710