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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 5 |
| 7 | 6 |
| 8 | 121 |
| 9 | 178 |
| 10 | 235 |
| 11 | 292 |
| 12 | 300 |
| 13 | 2997 |
| 14 | 6953 |
| 15 | 7801 |
| 16 | 10658 |
| 17 | 13459 |
| 18 | 16708 |
| 19 | 428585 |
| 20 | 431721 |
| 21 | 444713 |
| 22 | 447849 |
| 23 | 450985 |
| 24 | 502457 |
| 25 | 626778 |
| 26 | 786435 |
| 27 | 10453500 |
| 28 | 27924649 |
[0,1,2,3,4,5,6,121,178,235,292,300,2997,6953,7801, 10658,13459,16708,428585,431721,444713,447849, 450985,502457,626778,786435,10453500,27924649] |