Numbers k such that k^2 has one more divisor than k^2 - 1.

Terms

a(0) =2a(1) =4a(2) =8a(3) =14a(4) =16a(5) =22a(6) =38a(7) =58a(8) =135a(9) =158a(10) =178a(11) =256a(12) =297a(13) =382a(14) =502a(15) =542a(16) =568a(17) =676a(18) =718a(19) =878a(20) =1202a(21) =1215a(22) =1312a(23) =1318a(24) =1382a(25) =1438a(26) =1593a(27) =1622a(28) =1822a(29) =2018