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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 4 |
| 3 | 6 |
| 4 | 14 |
| 5 | 24 |
| 6 | 35 |
| 7 | 79 |
| 8 | 178 |
| 9 | 186 |
| 10 | 230 |
| 11 | 328 |
| 12 | 494 |
| 13 | 664 |
| 14 | 839 |
| 15 | 1103 |
| 16 | 1678 |
| 17 | 2074 |
| 18 | 3096 |
| 19 | 5150 |
| 20 | 6948 |
| 21 | 9919 |
| 22 | 13655 |
| 23 | 19483 |
| 24 | 22927 |
| 25 | 39991 |
| 26 | 54551 |
| 27 | 67687 |
| 28 | 76655 |
| 29 | 90151 |
| 30 | 175250 |
| 31 | 179120 |
[2,4,6,14,24,35,79,178,186,230,328,494,664,839, 1103,1678,2074,3096,5150,6948,9919,13655,19483, 22927,39991,54551,67687,76655,90151,175250,179120] |