Triangle read by rows: T(n,k) is the number of unlabeled graphs with n nodes and packing chromatic number k, 1 <= k <= n.

A363043

Triangle read by rows: T(n,k) is the number of unlabeled graphs with n nodes and packing chromatic number k, 1 <= k <= n.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =1a(6) =1a(7) =4a(8) =5a(9) =1a(10) =1a(11) =6a(12) =15a(13) =11a(14) =1a(15) =1a(16) =10a(17) =42a(18) =73a(19) =29a(20) =1a(21) =1a(22) =14a(23) =109a(24) =390a(25) =439a(26) =90a(27) =1a(28) =1a(29) =21

External references