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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 5 |
| 3 | 6 |
| 4 | 7 |
| 5 | 9 |
| 6 | 10 |
| 7 | 12 |
| 8 | 15 |
| 9 | 18 |
| 10 | 21 |
| 11 | 26 |
| 12 | 31 |
| 13 | 37 |
| 14 | 44 |
| 15 | 53 |
| 16 | 64 |
| 17 | 77 |
| 18 | 92 |
| 19 | 110 |
| 20 | 132 |
| 21 | 159 |
| 22 | 191 |
| 23 | 229 |
| 24 | 275 |
| 25 | 330 |
| 26 | 396 |
| 27 | 475 |
| 28 | 570 |
| 29 | 684 |
| 30 | 821 |
| 31 | 985 |
| 32 | 1182 |
| 33 | 1418 |
| 34 | 1702 |
| 35 | 2042 |
| 36 | 2451 |
| 37 | 2941 |
| 38 | 3529 |
| 39 | 4235 |
| 40 | 5082 |
[4,5,6,7,9,10,12,15,18,21,26,31,37,44,53,64,77,92, 110,132,159,191,229,275,330,396,475,570,684,821, 985,1182,1418,1702,2042,2451,2941,3529,4235,5082] |