Primes in A258974.

Terms

a(0) =2a(1) =17a(2) =37a(3) =197a(4) =577a(5) =577a(6) =401a(7) =1297a(8) =577a(9) =1601a(10) =3137a(11) =2917a(12) =3137a(13) =8101a(14) =7057a(15) =15377a(16) =2917a(17) =14401a(18) =14401a(19) =8101a(20) =7057a(21) =15877a(22) =5477a(23) =15377a(24) =15877a(25) =7057a(26) =50177a(27) =14401a(28) =32401a(29) =8101