Primes in A357251.

Terms

a(0) =19a(1) =14479a(2) =43609a(3) =406171a(4) =711959a(5) =1330177a(6) =2698231a(7) =3918157a(8) =18987169a(9) =26135339a(10) =194727347a(11) =269998639a(12) =975929347a(13) =5005853669a(14) =8430389621a(15) =24830247671a(16) =36372313009a(17) =69703708967a(18) =93194681917a(19) =126628534313a(20) =139478926201a(21) =304123612349a(22) =359101509211a(23) =384305009171a(24) =387550106843a(25) =400722388999