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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 18 |
| 5 | 114 |
| 6 | 131 |
| 7 | 180 |
| 8 | 258 |
| 9 | 324 |
| 10 | 412 |
| 11 | 431 |
| 12 | 605 |
| 13 | 646 |
| 14 | 864 |
| 15 | 1037 |
| 16 | 1081 |
| 17 | 1101 |
| 18 | 1167 |
| 19 | 1296 |
| 20 | 1313 |
| 21 | 1404 |
| 22 | 1470 |
| 23 | 1765 |
| 24 | 1856 |
| 25 | 1858 |
| 26 | 1900 |
| 27 | 1944 |
| 28 | 2032 |
| 29 | 2117 |
| 30 | 2327 |
| 31 | 2572 |
| 32 | 2630 |
| 33 | 2635 |
| 34 | 2674 |
| 35 | 2787 |
| 36 | 2809 |
| 37 | 2814 |
| 38 | 2897 |
| 39 | 3068 |
| 40 | 3214 |
| 41 | 3219 |
| 42 | 3261 |
| 43 | 3393 |
| 44 | 3451 |
| 45 | 3591 |
| 46 | 3622 |
| 47 | 3630 |
[1,2,4,18,114,131,180,258,324,412,431,605,646,864, 1037,1081,1101,1167,1296,1313,1404,1470,1765,1856, 1858,1900,1944,2032,2117,2327,2572,2630,2635,2674, 2787,2809,2814,2897,3068,3214,3219,3261,3393,3451, 3591,3622,3630] |