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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 4 |
| 4 | 6 |
| 5 | 12 |
| 6 | 28 |
| 7 | 39 |
| 8 | 58 |
| 9 | 73 |
| 10 | 102 |
| 11 | 141 |
| 12 | 409 |
| 13 | 423 |
| 14 | 567 |
| 15 | 831 |
| 16 | 930 |
| 17 | 1515 |
| 18 | 2619 |
| 19 | 5727 |
| 20 | 9235 |
| 21 | 12706 |
| 22 | 13189 |
| 23 | 37182 |
| 24 | 73917 |
[0,1,4,6,12,28,39,58,73,102,141,409,423,567,831, 930,1515,2619,5727,9235,12706,13189,37182,73917] |