Triangle read by rows: T(n,f) is the number of rooted maps with n edges and f faces on an orientable surface of genus 2.
A269922
Triangle read by rows: T(n,f) is the number of rooted maps with n edges and f faces on an orientable surface of genus 2.
Terms
- a(0) =21a(1) =483a(2) =483a(3) =6468a(4) =15018a(5) =6468a(6) =66066a(7) =258972a(8) =258972a(9) =66066a(10) =570570a(11) =3288327a(12) =5554188a(13) =3288327a(14) =570570a(15) =4390386a(16) =34374186a(17) =85421118a(18) =85421118a(19) =34374186a(20) =4390386a(21) =31039008a(22) =313530000a(23) =1059255456a(24) =1558792200a(25) =1059255456a(26) =313530000a(27) =31039008
External references
- oeis: A269922