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| n | a(n) |
|---|---|
| 1 | 9 |
| 2 | 93 |
| 3 | 390 |
| 4 | 1110 |
| 5 | 2535 |
| 6 | 5019 |
| 7 | 8988 |
| 8 | 14940 |
| 9 | 23445 |
| 10 | 35145 |
| 11 | 50754 |
| 12 | 71058 |
| 13 | 96915 |
| 14 | 129255 |
| 15 | 169080 |
| 16 | 217464 |
| 17 | 275553 |
| 18 | 344565 |
| 19 | 425790 |
| 20 | 520590 |
| 21 | 630399 |
| 22 | 756723 |
| 23 | 901140 |
| 24 | 1065300 |
| 25 | 1250925 |
| 26 | 1459809 |
| 27 | 1693818 |
| 28 | 1954890 |
| 29 | 2245035 |
| 30 | 2566335 |
| 31 | 2920944 |
| 32 | 3311088 |
| 33 | 3739065 |
| 34 | 4207245 |
[9,93,390,1110,2535,5019,8988,14940,23445,35145, 50754,71058,96915,129255,169080,217464,275553, 344565,425790,520590,630399,756723,901140,1065300, 1250925,1459809,1693818,1954890,2245035,2566335, 2920944,3311088,3739065,4207245] |