a(n) is the greatest prime p such that p + q^2 + r^3 = prime(n)^4 for some primes q and r.

Terms

a(0) =29a(1) =613a(2) =2389a(3) =14629a(4) =28549a(5) =83227a(6) =130171a(7) =279707a(8) =707131a(9) =923509a(10) =1873867a(11) =2825749a(12) =3418627a(13) =4879669a(14) =7890347a(15) =12116969a(16) =13845473a(17) =20150467a(18) =25411387a(19) =28398229a(20) =38949947a(21) =47458027a(22) =62740901a(23) =88529269a(24) =104060267a(25) =112550869a(26) =131079589a(27) =141157867a(28) =163046969a(29) =260144491