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| n | a(n) |
|---|---|
| 2 | -1 |
| 3 | 126 |
| 4 | 280 |
| 5 | 435 |
| 6 | 590 |
| 7 | 745 |
| 8 | 900 |
| 9 | 1055 |
| 10 | 1210 |
| 11 | 1365 |
| 12 | 1520 |
| 13 | 1673 |
| 14 | 1830 |
| 15 | 1985 |
| 16 | 2140 |
| 17 | 2293 |
| 18 | 2450 |
| 19 | 2603 |
| 20 | 2760 |
| 21 | 2913 |
| 22 | 3070 |
| 23 | 3223 |
| 24 | 3380 |
| 25 | 3531 |
| 26 | 3690 |
| 27 | 3843 |
| 28 | 4000 |
| 29 | 4151 |
| 30 | 4310 |
| 31 | 4461 |
| 32 | 4620 |
| 33 | 4771 |
| 34 | 4930 |
| 35 | 5081 |
| 36 | 5240 |
| 37 | 5389 |
| 38 | 5550 |
| 39 | 5701 |
| 40 | 5860 |
| 41 | 6009 |
| 42 | 6170 |
[-1,126,280,435,590,745,900,1055,1210,1365,1520, 1673,1830,1985,2140,2293,2450,2603,2760,2913,3070, 3223,3380,3531,3690,3843,4000,4151,4310,4461,4620, 4771,4930,5081,5240,5389,5550,5701,5860,6009,6170] |