Triangle read by rows: Number of D-classes in Partial Brauer Monoid PB_n.

Terms

a(0) =1a(1) =1a(2) =2a(3) =4a(4) =8a(5) =10a(6) =16a(7) =52a(8) =70a(9) =76a(10) =100a(11) =356a(12) =644a(13) =740a(14) =764a(15) =676a(16) =3176a(17) =6376a(18) =8776a(19) =9376a(20) =9496a(21) =5776a(22) =30112a(23) =75112a(24) =113512a(25) =135112a(26) =139432a(27) =140152a(28) =53824a(29) =336848