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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 13 |
| 7 | 18 |
| 8 | 28 |
| 9 | 118 |
| 10 | 257 |
| 11 | 289 |
| 12 | 308 |
| 13 | 353 |
| 14 | 419 |
| 15 | 4890 |
| 16 | 4891 |
| 17 | 9113 |
| 18 | 16387 |
| 19 | 66562 |
| 20 | 322217 |
| 21 | 1874374 |
| 22 | 172449032 |
| 23 | 268533762 |
| 24 | 338749352 |
| 25 | 2204944815 |
| 26 | 2204944816 |
| 27 | 2415951874 |
| 28 | 3250054360 |
| 29 | 3250054361 |
| 30 | 3264337734 |
| 31 | 4424304070 |
| 32 | 4424304071 |
[0,1,2,3,4,13,18,28,118,257,289,308,353,419,4890, 4891,9113,16387,66562,322217,1874374,172449032, 268533762,338749352,2204944815,2204944816, 2415951874,3250054360,3250054361,3264337734, 4424304070,4424304071] |