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| n | a(n) |
|---|---|
| 2 | 1 |
| 3 | 3 |
| 4 | 6 |
| 5 | 15 |
| 6 | 21 |
| 7 | 36 |
| 8 | 45 |
| 9 | 66 |
| 10 | 105 |
| 11 | 120 |
| 12 | 171 |
| 13 | 210 |
| 14 | 231 |
| 15 | 276 |
| 16 | 351 |
| 17 | 435 |
| 18 | 465 |
| 19 | 561 |
| 20 | 630 |
| 21 | 666 |
| 22 | 780 |
| 23 | 861 |
| 24 | 990 |
| 25 | 1176 |
| 26 | 1275 |
| 27 | 1326 |
| 28 | 1431 |
| 29 | 1485 |
| 30 | 1596 |
| 31 | 2016 |
| 32 | 2145 |
| 33 | 2346 |
| 34 | 2415 |
| 35 | 2775 |
| 36 | 2850 |
| 37 | 3081 |
| 38 | 3321 |
| 39 | 3486 |
| 40 | 3741 |
| 41 | 4005 |
| 42 | 4095 |
| 43 | 4560 |
| 44 | 4656 |
| 45 | 4851 |
| 46 | 4950 |
| 47 | 5565 |
| 48 | 6216 |
| 49 | 6441 |
[1,3,6,15,21,36,45,66,105,120,171,210,231,276,351, 435,465,561,630,666,780,861,990,1176,1275,1326, 1431,1485,1596,2016,2145,2346,2415,2775,2850,3081, 3321,3486,3741,4005,4095,4560,4656,4851,4950,5565, 6216,6441] |