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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 4 |
| 3 | 7 |
| 4 | 13 |
| 5 | 17 |
| 6 | 31 |
| 7 | 47 |
| 8 | 64 |
| 9 | 226 |
| 10 | 251 |
| 11 | 268 |
| 12 | 310 |
| 13 | 352 |
| 14 | 394 |
| 15 | 478 |
| 16 | 599 |
| 17 | 1529 |
| 18 | 1679 |
| 19 | 11590 |
| 20 | 12922 |
| 21 | 13151 |
| 22 | 18808 |
| 23 | 47188 |
| 24 | 52450 |
| 25 | 83038 |
| 26 | 93217 |
| 27 | 128086 |
| 28 | 154853 |
| 29 | 175774 |
[1,4,7,13,17,31,47,64,226,251,268,310,352,394,478, 599,1529,1679,11590,12922,13151,18808,47188,52450, 83038,93217,128086,154853,175774] |