Numbers k such that 5*k + 1 is a square.

Terms

a(0) =0a(1) =3a(2) =7a(3) =16a(4) =24a(5) =39a(6) =51a(7) =72a(8) =88a(9) =115a(10) =135a(11) =168a(12) =192a(13) =231a(14) =259a(15) =304a(16) =336a(17) =387a(18) =423a(19) =480a(20) =520a(21) =583a(22) =627a(23) =696a(24) =744a(25) =819a(26) =871a(27) =952a(28) =1008a(29) =1095