Maximal coefficient of Product_{j=1..n} (1 - x^prime(j)).

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =1a(8) =1a(9) =1a(10) =2a(11) =2a(12) =2a(13) =3a(14) =4a(15) =6a(16) =8a(17) =12a(18) =17a(19) =30a(20) =41a(21) =70a(22) =107a(23) =186a(24) =307a(25) =531a(26) =887a(27) =1561a(28) =2701a(29) =4817