Primes of the form (k^3 - k^2 - k - 1)/2 for some integer k > 0.

Terms

a(0) =7a(1) =47a(2) =599a(3) =1567a(4) =5807a(5) =7487a(6) =9463a(7) =20807a(8) =24623a(9) =28879a(10) =33599a(11) =81647a(12) =111599a(13) =123007a(14) =161839a(15) =225263a(16) =262399a(17) =282407a(18) =397807a(19) =541007a(20) =573247a(21) =606743a(22) =641519a(23) =922807a(24) =1115399a(25) =1513727a(26) =1577383a(27) =1709999a(28) =1779007a(29) =1849847