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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 7 |
| 3 | 17 |
| 4 | 35 |
| 5 | 62 |
| 6 | 103 |
| 7 | 165 |
| 8 | 257 |
| 9 | 390 |
| 10 | 577 |
| 11 | 833 |
| 12 | 1175 |
| 13 | 1622 |
| 14 | 2195 |
| 15 | 2917 |
| 16 | 3813 |
| 17 | 4910 |
| 18 | 6237 |
| 19 | 7825 |
| 20 | 9707 |
| 21 | 11918 |
| 22 | 14495 |
| 23 | 17477 |
| 24 | 20905 |
| 25 | 24822 |
| 26 | 29273 |
| 27 | 34305 |
| 28 | 39967 |
| 29 | 46310 |
| 30 | 53387 |
| 31 | 61253 |
| 32 | 69965 |
| 33 | 79582 |
| 34 | 90165 |
| 35 | 101777 |
| 36 | 114483 |
| 37 | 128350 |
| 38 | 143447 |
| 39 | 159845 |
| 40 | 177617 |
[3,7,17,35,62,103,165,257,390,577,833,1175,1622, 2195,2917,3813,4910,6237,7825,9707,11918,14495, 17477,20905,24822,29273,34305,39967,46310,53387, 61253,69965,79582,90165,101777,114483,128350, 143447,159845,177617] |