Strong pseudoprimes to bases 19, 23 and 29.

Terms

a(0) =4224533a(1) =5903497a(2) =16462297a(3) =22028203a(4) =44068001a(5) =336273211a(6) =1067437801a(7) =1813073653a(8) =1876485691a(9) =1894909141a(10) =2072488771a(11) =2458231903a(12) =2791053541a(13) =2827961221a(14) =3733646491a(15) =4333572253