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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 7 |
| 3 | 25 |
| 4 | 60 |
| 5 | 126 |
| 6 | 222 |
| 7 | 387 |
| 8 | 599 |
| 9 | 903 |
| 10 | 1295 |
| 11 | 1830 |
| 12 | 2458 |
| 13 | 3322 |
| 14 | 4317 |
| 15 | 5539 |
| 16 | 6993 |
| 17 | 8773 |
| 18 | 10766 |
| 19 | 13198 |
| 20 | 15906 |
| 21 | 19095 |
| 22 | 22707 |
| 23 | 26879 |
| 24 | 31376 |
| 25 | 36684 |
| 26 | 42500 |
| 27 | 49024 |
| 28 | 56131 |
| 29 | 64205 |
| 30 | 72833 |
| 31 | 82742 |
| 32 | 93314 |
| 33 | 104934 |
| 34 | 117500 |
| 35 | 131277 |
| 36 | 146003 |
| 37 | 162489 |
[0,1,7,25,60,126,222,387,599,903,1295,1830,2458, 3322,4317,5539,6993,8773,10766,13198,15906,19095, 22707,26879,31376,36684,42500,49024,56131,64205, 72833,82742,93314,104934,117500,131277,146003, 162489] |