The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 10 |
| 5 | 15 |
| 6 | 29 |
| 7 | 42 |
| 8 | 72 |
| 9 | 107 |
| 10 | 170 |
| 11 | 246 |
| 12 | 383 |
| 13 | 542 |
| 14 | 810 |
| 15 | 1145 |
| 16 | 1662 |
| 17 | 2311 |
| 18 | 3305 |
| 19 | 4537 |
| 20 | 6363 |
| 21 | 8677 |
| 22 | 11974 |
| 23 | 16159 |
| 24 | 22068 |
| 25 | 29504 |
| 26 | 39811 |
| 27 | 52887 |
| 28 | 70632 |
| 29 | 93102 |
| 30 | 123362 |
| 31 | 161473 |
| 32 | 212198 |
| 33 | 276185 |
| 34 | 360270 |
| 35 | 466090 |
| 36 | 604267 |
| 37 | 777399 |
| 38 | 1001656 |
| 39 | 1282456 |
[1,3,5,10,15,29,42,72,107,170,246,383,542,810, 1145,1662,2311,3305,4537,6363,8677,11974,16159, 22068,29504,39811,52887,70632,93102,123362,161473, 212198,276185,360270,466090,604267,777399,1001656, 1282456] |