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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 19 |
| 3 | 160 |
| 4 | 483 |
| 5 | 3089 |
| 6 | 3328 |
| 7 | 12563 |
| 8 | 10379 |
| 9 | 32184 |
| 10 | 88507 |
| 11 | 43668 |
| 12 | 188210 |
| 13 | 184134 |
| 14 | 113384 |
| 15 | 276419 |
| 16 | 559933 |
| 17 | 772460 |
| 18 | 312726 |
| 19 | 1129061 |
| 20 | 932029 |
| 21 | 525311 |
| 22 | 1842227 |
| 23 | 1471593 |
| 24 | 2621705 |
| 25 | 4372435 |
| 26 | 2610735 |
| 27 | 1421029 |
| 28 | 3089490 |
| 29 | 1675216 |
| 30 | 3621466 |
| 31 | 15889018 |
| 32 | 5569261 |
| 33 | 9318716 |
| 34 | 3378641 |
[4,19,160,483,3089,3328,12563,10379,32184,88507, 43668,188210,184134,113384,276419,559933,772460, 312726,1129061,932029,525311,1842227,1471593, 2621705,4372435,2610735,1421029,3089490,1675216, 3621466,15889018,5569261,9318716,3378641] |