Terms of A121707 not in A267999.

Terms

a(0) =697a(1) =1241a(2) =1247a(3) =1271a(4) =1513a(5) =2057a(6) =2201a(7) =2329a(8) =2501a(9) =2873a(10) =3053a(11) =3131a(12) =3683a(13) =3689a(14) =3961a(15) =4015a(16) =4061a(17) =4141a(18) =4777a(19) =4859a(20) =4991a(21) =5321a(22) =5921a(23) =5963a(24) =6137a(25) =6851a(26) =6953a(27) =7421a(28) =7769a(29) =7781