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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 36 |
| 3 | 261 |
| 4 | 1072 |
| 5 | 3225 |
| 6 | 7956 |
| 7 | 17101 |
| 8 | 33216 |
| 9 | 59697 |
| 10 | 100900 |
| 11 | 162261 |
| 12 | 250416 |
| 13 | 373321 |
| 14 | 540372 |
| 15 | 762525 |
| 16 | 1052416 |
| 17 | 1424481 |
| 18 | 1895076 |
| 19 | 2482597 |
| 20 | 3207600 |
| 21 | 4092921 |
| 22 | 5163796 |
| 23 | 6447981 |
| 24 | 7975872 |
| 25 | 9780625 |
| 26 | 11898276 |
| 27 | 14367861 |
| 28 | 17231536 |
| 29 | 20534697 |
| 30 | 24326100 |
| 31 | 28657981 |
| 32 | 33586176 |
| 33 | 39170241 |
| 34 | 45473572 |
[0,1,36,261,1072,3225,7956,17101,33216,59697, 100900,162261,250416,373321,540372,762525,1052416, 1424481,1895076,2482597,3207600,4092921,5163796, 6447981,7975872,9780625,11898276,14367861, 17231536,20534697,24326100,28657981,33586176, 39170241,45473572] |