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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 53 |
| 2 | 273 |
| 3 | 737 |
| 4 | 1613 |
| 5 | 2821 |
| 6 | 4853 |
| 7 | 7125 |
| 8 | 10593 |
| 9 | 14597 |
| 10 | 19885 |
| 11 | 25309 |
| 12 | 33677 |
| 13 | 41189 |
| 14 | 51269 |
| 15 | 62565 |
| 16 | 76145 |
| 17 | 88793 |
| 18 | 106821 |
| 19 | 122581 |
| 20 | 144541 |
| 21 | 166045 |
| 22 | 189997 |
| 23 | 212877 |
| 24 | 246653 |
| 25 | 275081 |
| 26 | 308369 |
| 27 | 343281 |
| 28 | 384977 |
| 29 | 421097 |
| 30 | 472649 |
| 31 | 513865 |
| 32 | 567765 |
[1,53,273,737,1613,2821,4853,7125,10593,14597, 19885,25309,33677,41189,51269,62565,76145,88793, 106821,122581,144541,166045,189997,212877,246653, 275081,308369,343281,384977,421097,472649,513865, 567765] |