Irregular primes with irregularity index seven.

Terms

a(0) =3238481a(1) =5216111a(2) =5620861a(3) =9208289a(4) =32012327a(5) =192539449a(6) =197456669a(7) =241759951a(8) =294014299a(9) =315034487a(10) =329438539a(11) =347672873a(12) =348049913a(13) =351984683a(14) =412348919a(15) =465404153a(16) =480509321a(17) =497070473a(18) =530088179a(19) =573652109a(20) =595050143a(21) =625827959a(22) =641663437a(23) =690262997a(24) =702149209