Primes of the form (4k^2 + 4k - 5)/5.

Terms

a(0) =23a(1) =71a(2) =167a(3) =191a(4) =479a(5) =743a(6) =1583a(7) =2039a(8) =2927a(9) =3863a(10) =5711a(11) =6551a(12) =7919a(13) =9767a(14) =10487a(15) =11423a(16) =15791a(17) =16703a(18) =18119a(19) =21647a(20) =21911a(21) =24359a(22) =27527a(23) =32159a(24) =35111a(25) =35447a(26) =38543a(27) =43991a(28) =45887a(29) =46271