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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 4 |
| 3 | 2 |
| 4 | 11 |
| 5 | 6 |
| 6 | 3 |
| 7 | 30 |
| 8 | 17 |
| 9 | 9 |
| 10 | 5 |
| 11 | 80 |
| 12 | 46 |
| 13 | 25 |
| 14 | 14 |
| 15 | 7 |
| 16 | 210 |
| 17 | 121 |
| 18 | 66 |
| 19 | 38 |
| 20 | 19 |
| 21 | 8 |
| 22 | 551 |
| 23 | 318 |
| 24 | 174 |
| 25 | 100 |
| 26 | 51 |
| 27 | 22 |
| 28 | 10 |
| 29 | 1444 |
| 30 | 834 |
| 31 | 457 |
| 32 | 263 |
| 33 | 135 |
| 34 | 59 |
| 35 | 27 |
| 36 | 12 |
| 37 | 3781 |
| 38 | 2184 |
| 39 | 1197 |
| 40 | 690 |
| 41 | 354 |
| 42 | 155 |
| 43 | 72 |
| 44 | 32 |
| 45 | 13 |
| 46 | 9900 |
| 47 | 5719 |
| 48 | 3135 |
| 49 | 1807 |
| 50 | 928 |
| 51 | 407 |
| 52 | 189 |
| 53 | 85 |
| 54 | 35 |
| 55 | 15 |
| 56 | 25920 |
| 57 | 14974 |
[1,4,2,11,6,3,30,17,9,5,80,46,25,14,7,210,121,66, 38,19,8,551,318,174,100,51,22,10,1444,834,457,263, 135,59,27,12,3781,2184,1197,690,354,155,72,32,13, 9900,5719,3135,1807,928,407,189,85,35,15,25920, 14974] |