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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 57 |
| 3 | 342 |
| 4 | 1293 |
| 5 | 3734 |
| 6 | 8991 |
| 7 | 19014 |
| 8 | 36497 |
| 9 | 64998 |
| 10 | 109059 |
| 11 | 174326 |
| 12 | 267669 |
| 13 | 397302 |
| 14 | 572903 |
| 15 | 805734 |
| 16 | 1108761 |
| 17 | 1496774 |
| 18 | 1986507 |
| 19 | 2596758 |
| 20 | 3348509 |
| 21 | 4265046 |
| 22 | 5372079 |
| 23 | 6697862 |
| 24 | 8273313 |
| 25 | 10132134 |
| 26 | 12310931 |
| 27 | 14849334 |
| 28 | 17790117 |
| 29 | 21179318 |
| 30 | 25066359 |
[6,57,342,1293,3734,8991,19014,36497,64998,109059, 174326,267669,397302,572903,805734,1108761, 1496774,1986507,2596758,3348509,4265046,5372079, 6697862,8273313,10132134,12310931,14849334, 17790117,21179318,25066359] |