Composite terms in A143578.

Terms

a(0) =15a(1) =35a(2) =95a(3) =119a(4) =143a(5) =209a(6) =287a(7) =319a(8) =323a(9) =377a(10) =527a(11) =559a(12) =779a(13) =899a(14) =923a(15) =989a(16) =1007a(17) =1189a(18) =1199a(19) =1343a(20) =1349a(21) =1763a(22) =1919a(23) =2159a(24) =2507a(25) =2759a(26) =2911a(27) =3239a(28) =3599a(29) =3827