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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 4 |
| 3 | 4 |
| 4 | 9 |
| 5 | 14 |
| 6 | 21 |
| 7 | 44 |
| 8 | 52 |
| 9 | 129 |
| 10 | 138 |
| 11 | 361 |
| 12 | 388 |
| 13 | 980 |
| 14 | 1129 |
| 15 | 2614 |
| 16 | 3325 |
| 17 | 6924 |
| 18 | 9764 |
| 19 | 18369 |
| 20 | 28370 |
| 21 | 49105 |
| 22 | 81348 |
| 23 | 132708 |
| 24 | 230281 |
| 25 | 362782 |
| 26 | 644837 |
| 27 | 1001644 |
| 28 | 1790932 |
| 29 | 2785729 |
| 30 | 4947162 |
| 31 | 7781177 |
| 32 | 13626564 |
| 33 | 21772724 |
| 34 | 37503337 |
| 35 | 60913350 |
| 36 | 103288269 |
| 37 | 170189068 |
[1,4,4,9,14,21,44,52,129,138,361,388,980,1129, 2614,3325,6924,9764,18369,28370,49105,81348, 132708,230281,362782,644837,1001644,1790932, 2785729,4947162,7781177,13626564,21772724, 37503337,60913350,103288269,170189068] |