Triangle read by rows: T(n,k) = number of tilings of a n X k rectangle using right trominoes, dominoes and 1 X 1 tiles, n >= 0, k = 0..n.

A353877

Triangle read by rows: T(n,k) = number of tilings of a n X k rectangle using right trominoes, dominoes and 1 X 1 tiles, n >= 0, k = 0..n.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =11a(6) =1a(7) =3a(8) =44a(9) =369a(10) =1a(11) =5a(12) =189a(13) =3633a(14) =83374a(15) =1a(16) =8a(17) =798a(18) =34002a(19) =1817897a(20) =90916452a(21) =1a(22) =13a(23) =3383a(24) =323293a(25) =40220893a(26) =4635661331a(27) =546063639624a(28) =1a(29) =21

External references