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| n | a(n) |
|---|---|
| 2 | 2 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 7 |
| 7 | 10 |
| 8 | 19 |
| 9 | 28 |
| 10 | 56 |
| 11 | 84 |
| 12 | 174 |
| 13 | 264 |
| 14 | 561 |
| 15 | 858 |
| 16 | 1859 |
| 17 | 2860 |
| 18 | 6292 |
| 19 | 9724 |
| 20 | 21658 |
| 21 | 33592 |
| 22 | 75582 |
| 23 | 117572 |
| 24 | 266798 |
| 25 | 416024 |
| 26 | 950912 |
| 27 | 1485800 |
| 28 | 3417340 |
| 29 | 5348880 |
| 30 | 12369285 |
| 31 | 19389690 |
| 32 | 45052515 |
| 33 | 70715340 |
| 34 | 165002460 |
| 35 | 259289580 |
| 36 | 607283490 |
[2,2,3,4,7,10,19,28,56,84,174,264,561,858,1859, 2860,6292,9724,21658,33592,75582,117572,266798, 416024,950912,1485800,3417340,5348880,12369285, 19389690,45052515,70715340,165002460,259289580, 607283490] |