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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 15 |
| 5 | 35 |
| 6 | 33 |
| 7 | 65 |
| 8 | 215 |
| 9 | 221 |
| 10 | 551 |
| 11 | 455 |
| 12 | 2001 |
| 13 | 3417 |
| 14 | 3621 |
| 15 | 11523 |
| 16 | 16705 |
| 17 | 16617 |
| 18 | 69845 |
| 19 | 107545 |
| 20 | 157285 |
| 21 | 324569 |
| 22 | 358883 |
| 23 | 1404949 |
| 24 | 1569295 |
| 25 | 3783970 |
| 26 | 3106285 |
| 27 | 7536065 |
| 28 | 12216295 |
| 29 | 10589487 |
| 30 | 24038979 |
| 31 | 57759065 |
| 32 | 51961945 |
| 33 | 177005465 |
| 34 | 131462695 |
| 35 | 741703701 |
| 36 | 1467144445 |
[1,2,3,15,35,33,65,215,221,551,455,2001,3417,3621, 11523,16705,16617,69845,107545,157285,324569, 358883,1404949,1569295,3783970,3106285,7536065, 12216295,10589487,24038979,57759065,51961945, 177005465,131462695,741703701,1467144445] |