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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 11 |
| 2 | 45 |
| 3 | 125 |
| 4 | 280 |
| 5 | 546 |
| 6 | 966 |
| 7 | 1590 |
| 8 | 2475 |
| 9 | 3685 |
| 10 | 5291 |
| 11 | 7371 |
| 12 | 10010 |
| 13 | 13300 |
| 14 | 17340 |
| 15 | 22236 |
| 16 | 28101 |
| 17 | 35055 |
| 18 | 43225 |
| 19 | 52745 |
| 20 | 63756 |
| 21 | 76406 |
| 22 | 90850 |
| 23 | 107250 |
| 24 | 125775 |
| 25 | 146601 |
| 26 | 169911 |
| 27 | 195895 |
| 28 | 224750 |
| 29 | 256680 |
| 30 | 291896 |
| 31 | 330616 |
| 32 | 373065 |
| 33 | 419475 |
| 34 | 470085 |
| 35 | 525141 |
[1,11,45,125,280,546,966,1590,2475,3685,5291,7371, 10010,13300,17340,22236,28101,35055,43225,52745, 63756,76406,90850,107250,125775,146601,169911, 195895,224750,256680,291896,330616,373065,419475, 470085,525141] |