Number of maximal primitive subsets of {1..n}.

Terms

a(0) =1a(1) =1a(2) =2a(3) =2a(4) =3a(5) =3a(6) =4a(7) =4a(8) =6a(9) =7a(10) =11a(11) =11a(12) =13a(13) =13a(14) =23a(15) =24a(16) =36a(17) =36a(18) =48a(19) =48a(20) =64a(21) =66a(22) =126a(23) =126a(24) =150a(25) =151a(26) =295a(27) =363a(28) =507a(29) =507