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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 6 |
| 3 | 42 |
| 4 | 43 |
| 5 | 51 |
| 6 | 52 |
| 7 | 385 |
| 8 | 386 |
| 9 | 387 |
| 10 | 388 |
| 11 | 389 |
| 12 | 413 |
| 13 | 414 |
| 14 | 415 |
| 15 | 416 |
| 16 | 417 |
| 17 | 475 |
| 18 | 476 |
| 19 | 477 |
| 20 | 478 |
| 21 | 479 |
| 22 | 503 |
| 23 | 504 |
| 24 | 505 |
| 25 | 506 |
| 26 | 507 |
| 27 | 551 |
| 28 | 552 |
| 29 | 553 |
| 30 | 554 |
| 31 | 555 |
| 32 | 4089 |
| 33 | 4090 |
| 34 | 4091 |
| 35 | 4092 |
| 36 | 4093 |
| 37 | 4094 |
| 38 | 4095 |
| 39 | 4096 |
| 40 | 4097 |
| 41 | 4098 |
| 42 | 4099 |
| 43 | 4100 |
| 44 | 4101 |
| 45 | 4102 |
| 46 | 4179 |
| 47 | 4180 |
[0,1,6,42,43,51,52,385,386,387,388,389,413,414, 415,416,417,475,476,477,478,479,503,504,505,506, 507,551,552,553,554,555,4089,4090,4091,4092,4093, 4094,4095,4096,4097,4098,4099,4100,4101,4102,4179, 4180] |