Number of 9-element subsets of [n] having a prime element sum.

Terms

a(0) =0a(1) =2a(2) =12a(3) =47a(4) =169a(5) =477a(6) =1169a(7) =2504a(8) =5083a(9) =10060a(10) =19531a(11) =36004a(12) =62654a(13) =103326a(14) =164132a(15) =253914a(16) =386429a(17) =580424a(18) =862419a(19) =1266725a(20) =1839456a(21) =2638409a(22) =3737879a(23) =5226949a(24) =7215039a(25) =9830238a(26) =13228817a(27) =17596011a(28) =23161194a(29) =30200288