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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 12 |
| 3 | 20 |
| 4 | 28 |
| 5 | 36 |
| 6 | 44 |
| 7 | 52 |
| 8 | 60 |
| 9 | 68 |
| 10 | 76 |
| 11 | 92 |
| 12 | 100 |
| 13 | 108 |
| 14 | 124 |
| 15 | 132 |
| 16 | 148 |
| 17 | 172 |
| 18 | 188 |
| 19 | 220 |
| 20 | 268 |
| 21 | 292 |
| 22 | 388 |
| 23 | 412 |
[4,12,20,28,36,44,52,60,68,76,92,100,108,124,132, 148,172,188,220,268,292,388,412] |