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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 14 |
| 4 | 70 |
| 5 | 230 |
| 6 | 595 |
| 7 | 1316 |
| 8 | 2604 |
| 9 | 4740 |
| 10 | 8085 |
| 11 | 13090 |
| 12 | 20306 |
| 13 | 30394 |
| 14 | 44135 |
| 15 | 62440 |
| 16 | 86360 |
| 17 | 117096 |
| 18 | 156009 |
| 19 | 204630 |
| 20 | 264670 |
| 21 | 338030 |
| 22 | 426811 |
| 23 | 533324 |
| 24 | 660100 |
| 25 | 809900 |
| 26 | 985725 |
| 27 | 1190826 |
| 28 | 1428714 |
| 29 | 1703170 |
| 30 | 2018255 |
| 31 | 2378320 |
| 32 | 2788016 |
| 33 | 3252304 |
| 34 | 3776465 |
| 35 | 4366110 |
| 36 | 5027190 |
[0,1,14,70,230,595,1316,2604,4740,8085,13090, 20306,30394,44135,62440,86360,117096,156009, 204630,264670,338030,426811,533324,660100,809900, 985725,1190826,1428714,1703170,2018255,2378320, 2788016,3252304,3776465,4366110,5027190] |