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| n | a(n) |
|---|---|
| 1 | 11 |
| 2 | 121 |
| 3 | 726 |
| 4 | 2962 |
| 5 | 9808 |
| 6 | 28450 |
| 7 | 74599 |
| 8 | 179991 |
| 9 | 404599 |
| 10 | 855417 |
| 11 | 1714062 |
| 12 | 3275798 |
| 13 | 6002946 |
| 14 | 10596004 |
| 15 | 18086161 |
| 16 | 29953249 |
| 17 | 48273537 |
| 18 | 75902131 |
| 19 | 116695104 |
| 20 | 175776840 |
| 21 | 259858436 |
| 22 | 377613366 |
| 23 | 540116971 |
| 24 | 761356699 |
| 25 | 1058820379 |
| 26 | 1454170173 |
[11,121,726,2962,9808,28450,74599,179991,404599, 855417,1714062,3275798,6002946,10596004,18086161, 29953249,48273537,75902131,116695104,175776840, 259858436,377613366,540116971,761356699, 1058820379,1454170173] |