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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 6 |
| 3 | 12 |
| 4 | 20 |
| 5 | 30 |
| 6 | 42 |
| 7 | 60 |
| 8 | 80 |
| 9 | 102 |
| 10 | 128 |
| 11 | 158 |
| 12 | 192 |
| 13 | 228 |
| 14 | 270 |
| 15 | 314 |
| 16 | 360 |
| 17 | 410 |
| 18 | 462 |
| 19 | 522 |
| 20 | 588 |
| 21 | 660 |
| 22 | 734 |
| 23 | 810 |
| 24 | 888 |
| 25 | 968 |
| 26 | 1050 |
| 27 | 1152 |
| 28 | 1260 |
| 29 | 1374 |
| 30 | 1490 |
| 31 | 1608 |
| 32 | 1734 |
| 33 | 1862 |
| 34 | 1994 |
| 35 | 2130 |
| 36 | 2268 |
| 37 | 2412 |
| 38 | 2558 |
| 39 | 2708 |
| 40 | 2862 |
| 41 | 3020 |
| 42 | 3182 |
| 43 | 3348 |
| 44 | 3518 |
| 45 | 3692 |
| 46 | 3878 |
| 47 | 4074 |
| 48 | 4272 |
| 49 | 4482 |
[4,6,12,20,30,42,60,80,102,128,158,192,228,270, 314,360,410,462,522,588,660,734,810,888,968,1050, 1152,1260,1374,1490,1608,1734,1862,1994,2130,2268, 2412,2558,2708,2862,3020,3182,3348,3518,3692,3878, 4074,4272,4482] |