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| n | a(n) |
|---|---|
| 3 | 1 |
| 4 | 93 |
| 5 | 538 |
| 6 | 1532 |
| 7 | 3630 |
| 8 | 7540 |
| 9 | 14138 |
| 10 | 24480 |
| 11 | 39802 |
| 12 | 61520 |
| 13 | 91230 |
| 14 | 130708 |
| 15 | 181910 |
| 16 | 246972 |
| 17 | 328210 |
| 18 | 428120 |
| 19 | 549378 |
| 20 | 694840 |
| 21 | 867542 |
| 22 | 1070700 |
| 23 | 1307710 |
| 24 | 1582148 |
| 25 | 1897770 |
| 26 | 2258512 |
| 27 | 2668490 |
| 28 | 3132000 |
| 29 | 3653518 |
| 30 | 4237700 |
| 31 | 4889382 |
| 32 | 5613580 |
[1,93,538,1532,3630,7540,14138,24480,39802,61520, 91230,130708,181910,246972,328210,428120,549378, 694840,867542,1070700,1307710,1582148,1897770, 2258512,2668490,3132000,3653518,4237700,4889382, 5613580] |