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| n | a(n) |
|---|---|
| 2 | -1 |
| 3 | 39 |
| 4 | 80 |
| 5 | 120 |
| 6 | 160 |
| 7 | 200 |
| 8 | 240 |
| 9 | 278 |
| 10 | 320 |
| 11 | 358 |
| 12 | 400 |
| 13 | 440 |
| 14 | 480 |
| 15 | 516 |
| 16 | 560 |
| 17 | 598 |
| 18 | 640 |
| 19 | 678 |
| 20 | 720 |
| 21 | 756 |
| 22 | 800 |
| 23 | 836 |
| 24 | 880 |
| 25 | 918 |
| 26 | 960 |
| 27 | 994 |
| 28 | 1040 |
| 29 | 1076 |
| 30 | 1120 |
| 31 | 1156 |
| 32 | 1200 |
| 33 | 1234 |
| 34 | 1280 |
| 35 | 1314 |
| 36 | 1360 |
| 37 | 1396 |
| 38 | 1440 |
| 39 | 1472 |
| 40 | 1520 |
| 41 | 1554 |
| 42 | 1600 |
| 43 | 1634 |
| 44 | 1680 |
| 45 | 1712 |
| 46 | 1760 |
[-1,39,80,120,160,200,240,278,320,358,400,440,480, 516,560,598,640,678,720,756,800,836,880,918,960, 994,1040,1076,1120,1156,1200,1234,1280,1314,1360, 1396,1440,1472,1520,1554,1600,1634,1680,1712,1760] |