Regular triangle where T(n,k) is the number of clutters (connected antichains) on n + 1 vertices with k maximal blobs (2-connected components).
A317672
Regular triangle where T(n,k) is the number of clutters (connected antichains) on n + 1 vertices with k maximal blobs (2-connected components).
Terms
- a(0) =1a(1) =2a(2) =3a(3) =44a(4) =24a(5) =16a(6) =4983a(7) =940a(8) =300a(9) =125a(10) =7565342a(11) =154770a(12) =18000a(13) =4320a(14) =1296a(16) =318926314a(17) =3927105a(18) =363580a(19) =72030a(20) =16807a(23) =10244647168a(24) =99187200a(25) =8028160a(26) =1376256a(27) =262144
External references
- oeis: A317672