a(n) is the number of rooted maps with n edges and 4 faces on an orientable surface of genus 1.
A288071
a(n) is the number of rooted maps with n edges and 4 faces on an orientable surface of genus 1.
Terms
- a(0) =420a(1) =14065a(2) =256116a(3) =3392843a(4) =36703824a(5) =344468530a(6) =2908358552a(7) =22620890127a(8) =164767964504
External references
- oeis: A288071