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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 6 |
| 5 | 10 |
| 6 | 15 |
| 7 | 30 |
| 8 | 42 |
| 9 | 70 |
| 10 | 105 |
| 11 | 210 |
| 12 | 330 |
| 13 | 462 |
| 14 | 770 |
| 15 | 1155 |
| 16 | 2310 |
| 17 | 2730 |
| 18 | 4290 |
| 19 | 6006 |
| 20 | 10010 |
| 21 | 15015 |
| 22 | 30030 |
| 23 | 39270 |
| 24 | 46410 |
| 25 | 72930 |
| 26 | 102102 |
| 27 | 170170 |
| 28 | 255255 |
| 29 | 510510 |
| 30 | 570570 |
| 31 | 746130 |
| 32 | 881790 |
| 33 | 1385670 |
| 34 | 1939938 |
| 35 | 3233230 |
| 36 | 4849845 |
| 37 | 9699690 |
| 38 | 11741730 |
[1,2,3,6,10,15,30,42,70,105,210,330,462,770,1155, 2310,2730,4290,6006,10010,15015,30030,39270,46410, 72930,102102,170170,255255,510510,570570,746130, 881790,1385670,1939938,3233230,4849845,9699690, 11741730] |