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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 14 |
| 3 | 24 |
| 4 | 36 |
| 5 | 67 |
| 6 | 134 |
| 7 | 240 |
| 8 | 432 |
| 9 | 803 |
| 10 | 1501 |
| 11 | 2764 |
| 12 | 5118 |
| 13 | 9519 |
| 14 | 17718 |
| 15 | 32927 |
| 16 | 61310 |
| 17 | 114257 |
| 18 | 213023 |
| 19 | 397223 |
| 20 | 741197 |
| 21 | 1383497 |
| 22 | 2583168 |
| 23 | 4824204 |
| 24 | 9012010 |
| 25 | 16838364 |
| 26 | 31466993 |
| 27 | 58813148 |
| 28 | 109939804 |
| 29 | 205534006 |
| 30 | 384287357 |
| 31 | 718564103 |
| 32 | 1343717638 |
[4,14,24,36,67,134,240,432,803,1501,2764,5118, 9519,17718,32927,61310,114257,213023,397223, 741197,1383497,2583168,4824204,9012010,16838364, 31466993,58813148,109939804,205534006,384287357, 718564103,1343717638] |