Triangle T(n,p) read by rows: the order of the semigroup of orientation-preserving partial transformations of n elements with height p.

A289711

Triangle T(n,p) read by rows: the order of the semigroup of orientation-preserving partial transformations of n elements with height p.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =6a(5) =2a(6) =1a(7) =21a(8) =36a(9) =3a(10) =1a(11) =60a(12) =288a(13) =96a(14) =4a(15) =1a(16) =155a(17) =1600a(18) =1200a(19) =200a(20) =5a(21) =1a(22) =378a(23) =7200a(24) =9600a(25) =3600a(26) =360a(27) =6a(28) =1a(29) =889

External references