The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 6 |
| 4 | 12 |
| 5 | 19 |
| 6 | 32 |
| 7 | 46 |
| 8 | 69 |
| 9 | 96 |
| 10 | 133 |
| 11 | 171 |
| 12 | 234 |
| 13 | 298 |
| 14 | 379 |
| 15 | 471 |
| 16 | 595 |
| 17 | 720 |
| 18 | 891 |
| 19 | 1063 |
| 20 | 1288 |
| 21 | 1531 |
| 22 | 1815 |
| 23 | 2100 |
| 24 | 2496 |
| 25 | 2900 |
| 26 | 3371 |
| 27 | 3873 |
| 28 | 4479 |
| 29 | 5086 |
| 30 | 5848 |
| 31 | 6611 |
| 32 | 7530 |
| 33 | 8491 |
| 34 | 9580 |
| 35 | 10691 |
| 36 | 12088 |
| 37 | 13486 |
| 38 | 15059 |
| 39 | 16700 |
| 40 | 18642 |
| 41 | 20585 |
| 42 | 22885 |
| 43 | 25186 |
| 44 | 27818 |
| 45 | 30580 |
| 46 | 33630 |
| 47 | 36681 |
| 48 | 40363 |
| 49 | 44060 |
| 50 | 48208 |
[1,3,6,12,19,32,46,69,96,133,171,234,298,379,471, 595,720,891,1063,1288,1531,1815,2100,2496,2900, 3371,3873,4479,5086,5848,6611,7530,8491,9580, 10691,12088,13486,15059,16700,18642,20585,22885, 25186,27818,30580,33630,36681,40363,44060,48208] |