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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 34 |
| 3 | 195 |
| 4 | 644 |
| 5 | 1605 |
| 6 | 3366 |
| 7 | 6279 |
| 8 | 10760 |
| 9 | 17289 |
| 10 | 26410 |
| 11 | 38731 |
| 12 | 54924 |
| 13 | 75725 |
| 14 | 101934 |
| 15 | 134415 |
| 16 | 174096 |
| 17 | 221969 |
| 18 | 279090 |
| 19 | 346579 |
| 20 | 425620 |
| 21 | 517461 |
| 22 | 623414 |
| 23 | 744855 |
| 24 | 883224 |
| 25 | 1040025 |
| 26 | 1216826 |
| 27 | 1415259 |
| 28 | 1637020 |
| 29 | 1883869 |
| 30 | 2157630 |
[0,1,34,195,644,1605,3366,6279,10760,17289,26410, 38731,54924,75725,101934,134415,174096,221969, 279090,346579,425620,517461,623414,744855,883224, 1040025,1216826,1415259,1637020,1883869,2157630] |