Array read by antidiagonals: T(n,k) = number of rooted 2-dimensional polyominoes with k cells, the cells being regular n-gons, with no symmetries removed.

A094166

Array read by antidiagonals: T(n,k) = number of rooted 2-dimensional polyominoes with k cells, the cells being regular n-gons, with no symmetries removed.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =1a(4) =4a(5) =9a(6) =1a(7) =5a(8) =18a(9) =28a(10) =1a(11) =6a(12) =30a(13) =76a(14) =90a(15) =1a(16) =7a(17) =33a(18) =180a(19) =315a(20) =282a(21) =1a(22) =8a(23) =42a(24) =176a(25) =1075a(26) =1296a(27) =875a(28) =1a(29) =9

External references