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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 13 |
| 3 | 44 |
| 4 | 153 |
| 5 | 494 |
| 6 | 1343 |
| 7 | 3016 |
| 8 | 5833 |
| 9 | 10114 |
| 10 | 16179 |
| 11 | 24348 |
| 12 | 34941 |
| 13 | 48278 |
| 14 | 64679 |
| 15 | 84464 |
| 16 | 107953 |
| 17 | 135466 |
| 18 | 167323 |
| 19 | 203844 |
| 20 | 245349 |
| 21 | 292158 |
| 22 | 344591 |
| 23 | 402968 |
| 24 | 467609 |
| 25 | 538834 |
| 26 | 616963 |
| 27 | 702316 |
| 28 | 795213 |
| 29 | 895974 |
| 30 | 1004919 |
| 31 | 1122368 |
| 32 | 1248641 |
| 33 | 1384058 |
[4,13,44,153,494,1343,3016,5833,10114,16179,24348, 34941,48278,64679,84464,107953,135466,167323, 203844,245349,292158,344591,402968,467609,538834, 616963,702316,795213,895974,1004919,1122368, 1248641,1384058] |