Square of the lower triangular normalized partition matrix.

Terms

a(0) =1a(1) =3a(2) =1a(3) =11a(4) =5a(5) =2a(6) =38a(7) =26a(8) =8a(9) =3a(10) =316a(11) =247a(12) =121a(13) =36a(14) =15a(15) =3183a(16) =2971a(17) =1508a(18) =558a(19) =180a(20) =70a(21) =11265a(22) =11729a(23) =7032a(24) =2928a(25) =1178a(26) =364a(27) =154a(28) =14759a(29) =17212