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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 6 |
| 3 | 13 |
| 4 | 18 |
| 5 | 21 |
| 6 | 22 |
| 7 | 25 |
| 8 | 28 |
| 9 | 66 |
| 10 | 93 |
| 11 | 118 |
| 12 | 289 |
| 13 | 412 |
| 14 | 453 |
| 15 | 525 |
| 16 | 726 |
| 17 | 828 |
| 18 | 1420 |
| 19 | 1630 |
| 20 | 3076 |
| 21 | 3118 |
| 22 | 4452 |
| 23 | 4941 |
| 24 | 5236 |
| 25 | 6346 |
| 26 | 9133 |
| 27 | 13401 |
| 28 | 14214 |
| 29 | 18766 |
| 30 | 37249 |
| 31 | 42685 |
| 32 | 47805 |
| 33 | 61372 |
| 34 | 74178 |
| 35 | 600270 |
| 36 | 922782 |
| 37 | 1130884 |
| 38 | 2345001 |
| 39 | 3176269 |
| 40 | 3570132 |
| 41 | 3649810 |
[1,6,13,18,21,22,25,28,66,93,118,289,412,453,525, 726,828,1420,1630,3076,3118,4452,4941,5236,6346, 9133,13401,14214,18766,37249,42685,47805,61372, 74178,600270,922782,1130884,2345001,3176269, 3570132,3649810] |