Triangle read by rows: T(n,k) is the number of achiral combinatorial maps with n edges and genus k, 0 <= k <= floor(n/2).
A380234
Triangle read by rows: T(n,k) is the number of achiral combinatorial maps with n edges and genus k, 0 <= k <= floor(n/2).
Terms
- a(0) =1a(1) =2a(2) =4a(3) =1a(4) =14a(5) =6a(6) =47a(7) =34a(8) =4a(9) =184a(10) =188a(11) =46a(12) =761a(13) =1040a(14) =408a(15) =33a(16) =3314a(17) =5756a(18) =3220a(19) =538a(20) =14997a(21) =32069a(22) =23824a(23) =6489a(24) =398a(25) =69886a(26) =179408a(27) =169336a(28) =66150a(29) =8506
External references
- oeis: A380234