Triangle read by rows: T(n,k) is the number of deco polyominoes of height n in which the maximal number of initial consecutive columns ending at the same level is k (1 <= k <= n).
A140709
Triangle read by rows: T(n,k) is the number of deco polyominoes of height n in which the maximal number of initial consecutive columns ending at the same level is k (1 <= k <= n).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =3a(4) =2a(5) =1a(6) =15a(7) =5a(8) =3a(9) =1a(10) =87a(11) =20a(12) =8a(13) =4a(14) =1a(15) =567a(16) =107a(17) =28a(18) =12a(19) =5a(20) =1a(21) =4167a(22) =674a(23) =135a(24) =40a(25) =17a(26) =6a(27) =1a(28) =34407a(29) =4841
External references
- oeis: A140709