| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 10 |
| 3 | 45 |
| 4 | 124 |
| 5 | 265 |
| 6 | 486 |
| 7 | 805 |
| 8 | 1240 |
| 9 | 1809 |
| 10 | 2530 |
| 11 | 3421 |
| 12 | 4500 |
| 13 | 5785 |
| 14 | 7294 |
| 15 | 9045 |
| 16 | 11056 |
| 17 | 13345 |
| 18 | 15930 |
| 19 | 18829 |
| 20 | 22060 |
| 21 | 25641 |
| 22 | 29590 |
| 23 | 33925 |
| 24 | 38664 |
| 25 | 43825 |
| 26 | 49426 |
| 27 | 55485 |
| 28 | 62020 |
| 29 | 69049 |
| 30 | 76590 |
| 31 | 84661 |
| 32 | 93280 |
| 33 | 102465 |
| 34 | 112234 |
| 35 | 122605 |
| 36 | 133596 |
| 37 | 145225 |
| 38 | 157510 |
| 39 | 170469 |
[0,1,10,45,124,265,486,805,1240,1809,2530,3421, 4500,5785,7294,9045,11056,13345,15930,18829,22060, 25641,29590,33925,38664,43825,49426,55485,62020, 69049,76590,84661,93280,102465,112234,122605, 133596,145225,157510,170469] |