# Computed using the Mathematica program that I contributed to this sequence 1 1 2 4 3 9 4 100 5 121 6 144 7 169 8 400 9 441 10 484 11 675 12 676 13 900 14 961 15 1000 16 1089 17 1800 18 4000 19 9000 20 9801 21 10000 22 10201 23 10404 24 10609 25 12100 26 12321 27 12544 28 12769 29 14400 30 14641 31 14884 32 16900 33 18000 34 18252 35 40000 36 40401 37 40804 38 44100 39 44521 40 44944 41 48400 42 48841 43 52272 44 67500 45 67600 46 69696 47 90000 48 90601 49 94249 50 96100 51 96721 52 100000 53 108900 54 121000 55 144000 56 169000 57 180000 58 400000 59 441000 60 484000 61 520200 62 653400 63 675000 64 676000 65 698896 66 900000 67 961000 68 980100 69 1000000 70 1002001 71 1004004 72 1006009 73 1020100 74 1022121 75 1024144 76 1026169 77 1040400 78 1042441 79 1044484 80 1060900 81 1062961 82 1089000 83 1210000 84 1212201 85 1214404 86 1216609 87 1232100 88 1234321 89 1236544 90 1238769 91 1254400 92 1256641 93 1258884 94 1276900 95 1440000 96 1442401 97 1444804 98 1464100 99 1466521 100 1468944 101 1488400 102 1633500 103 1690000 104 1692601 105 1800000 106 1825200 107 4000000 108 4004001 109 4008004 110 4040100 111 4044121 112 4048144 113 4080400 114 4084441 115 4088484 116 4234032 117 4410000 118 4414201 119 4418404 120 4452100 121 4456321 122 4494400 123 4498641 124 4840000 125 4840416 126 4844401 127 4848804 128 4884100 129 4888521 130 5202000 131 5221225 132 5227200 133 6534000 134 6750000 135 6760000 136 6948496 137 6969600 138 9000000 139 9006001 140 9060100 141 9066121 142 9424900 143 9610000 144 9616201 145 9672100 146 9678321 147 9801000 148 10000000 149 10036224 150 10201000 151 10404000 152 10609000 153 10890000 154 12100000 155 12321000 156 12544000 157 12769000 158 14400000 159 14641000 160 14884000