Triangle read by rows: T(n,k) is the number of sensed combinatorial maps with n edges and genus k, 0 <= k <= floor(n/2).

A379438

Triangle read by rows: T(n,k) is the number of sensed 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) =57a(7) =46a(8) =4a(9) =312a(10) =452a(11) =106a(12) =2071a(13) =4852a(14) =2382a(15) =131a(16) =15030a(17) =52972a(18) =46680a(19) =8158a(20) =117735a(21) =587047a(22) =830848a(23) =313611a(24) =14118a(25) =967850a(26) =6550808a(27) =13804864a(28) =9326858a(29) =1369446

External references