Smallest prime p modulo which numbers 1,2,...,n are quadratic residues.

Terms

a(0) =2a(1) =7a(2) =23a(3) =23a(4) =71a(5) =71a(6) =311a(7) =311a(8) =311a(9) =311a(10) =479a(11) =479a(12) =1559a(13) =1559a(14) =1559a(15) =1559a(16) =5711a(17) =5711a(18) =10559a(19) =10559a(20) =10559a(21) =10559a(22) =18191a(23) =18191a(24) =18191a(25) =18191a(26) =18191a(27) =18191a(28) =31391a(29) =31391