Primes of the form k^5 + k^4 + k^3 + k^2 + k - 1.

Terms

a(0) =61a(1) =37447a(2) =111109a(3) =271451a(4) =1118479a(5) =2000717a(6) =5399041a(7) =8308823a(8) =17847787a(9) =34636831a(10) =133878821a(11) =318877549a(12) =790779659a(13) =1475634067a(14) =1705057969a(15) =2924670137a(16) =5337978007a(17) =12284650663a(18) =14830601147a(19) =23073112417a(20) =40380555731a(21) =50414324357a(22) =372777302329a(23) =766855252057