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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 2 |
| 7 | 4 |
| 8 | 9 |
| 9 | 9 |
| 10 | 4 |
| 11 | 9 |
| 12 | 26 |
| 13 | 37 |
| 14 | 26 |
| 15 | 9 |
| 16 | 20 |
| 17 | 75 |
| 18 | 134 |
| 19 | 134 |
| 20 | 75 |
| 21 | 20 |
| 22 | 48 |
| 23 | 214 |
| 24 | 469 |
| 25 | 596 |
| 26 | 469 |
| 27 | 214 |
| 28 | 48 |
| 29 | 115 |
| 30 | 612 |
| 31 | 1577 |
| 32 | 2445 |
| 33 | 2445 |
| 34 | 1577 |
| 35 | 612 |
| 36 | 115 |
| 37 | 286 |
| 38 | 1747 |
| 39 | 5204 |
| 40 | 9480 |
| 41 | 11513 |
| 42 | 9480 |
| 43 | 5204 |
| 44 | 1747 |
| 45 | 286 |
| 46 | 719 |
| 47 | 4995 |
| 48 | 16865 |
| 49 | 35357 |
| 50 | 50363 |
| 51 | 50363 |
| 52 | 35357 |
| 53 | 16865 |
| 54 | 4995 |
| 55 | 719 |
[1,1,1,2,3,2,4,9,9,4,9,26,37,26,9,20,75,134,134, 75,20,48,214,469,596,469,214,48,115,612,1577,2445, 2445,1577,612,115,286,1747,5204,9480,11513,9480, 5204,1747,286,719,4995,16865,35357,50363,50363, 35357,16865,4995,719] |