Triangle read by rows: Ranks of ideals in Partial Brauer Monoid PB_n.

Terms

a(0) =1a(1) =1a(2) =2a(3) =2a(4) =3a(5) =3a(6) =4a(7) =6a(8) =6a(9) =4a(10) =10a(11) =19a(12) =12a(13) =11a(14) =4a(15) =26a(16) =50a(17) =55a(18) =20a(19) =16a(20) =4a(21) =76a(22) =171a(23) =150a(24) =125a(25) =30a(26) =22a(27) =4a(28) =232a(29) =532