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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 9 |
| 4 | 5 |
| 5 | 4 |
| 6 | 36 |
| 7 | 23 |
| 8 | 13 |
| 9 | 9 |
| 10 | 116 |
| 11 | 71 |
| 12 | 45 |
| 13 | 25 |
| 14 | 16 |
| 15 | 316 |
| 16 | 196 |
| 17 | 120 |
| 18 | 75 |
| 19 | 41 |
| 20 | 25 |
| 21 | 784 |
| 22 | 484 |
| 23 | 300 |
| 24 | 183 |
| 25 | 113 |
| 26 | 61 |
| 27 | 36 |
| 28 | 1813 |
| 29 | 1121 |
| 30 | 692 |
| 31 | 428 |
| 32 | 260 |
| 33 | 159 |
| 34 | 85 |
| 35 | 49 |
| 36 | 3989 |
| 37 | 2465 |
| 38 | 1524 |
| 39 | 940 |
| 40 | 580 |
| 41 | 351 |
| 42 | 213 |
| 43 | 113 |
| 44 | 64 |
| 45 | 8444 |
| 46 | 5219 |
| 47 | 3225 |
| 48 | 1993 |
| 49 | 1228 |
| 50 | 756 |
| 51 | 456 |
| 52 | 275 |
| 53 | 145 |
| 54 | 81 |
[1,1,1,9,5,4,36,23,13,9,116,71,45,25,16,316,196, 120,75,41,25,784,484,300,183,113,61,36,1813,1121, 692,428,260,159,85,49,3989,2465,1524,940,580,351, 213,113,64,8444,5219,3225,1993,1228,756,456,275, 145,81] |