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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 2 |
| 7 | 4 |
| 8 | 4 |
| 9 | 1 |
| 10 | 1 |
| 11 | 3 |
| 12 | 9 |
| 13 | 18 |
| 14 | 21 |
| 15 | 9 |
| 16 | 1 |
| 17 | 1 |
| 18 | 4 |
| 19 | 16 |
| 20 | 48 |
| 21 | 102 |
| 22 | 132 |
| 23 | 76 |
| 24 | 16 |
| 25 | 1 |
| 26 | 1 |
| 27 | 5 |
| 28 | 25 |
| 29 | 100 |
| 30 | 310 |
| 31 | 690 |
| 32 | 970 |
| 33 | 680 |
| 34 | 205 |
| 35 | 25 |
| 36 | 1 |
| 37 | 1 |
| 38 | 6 |
| 39 | 36 |
| 40 | 180 |
| 41 | 735 |
| 42 | 2340 |
| 43 | 5420 |
| 44 | 8160 |
| 45 | 2550 |
| 46 | 456 |
| 47 | 36 |
| 48 | 1 |
| 49 | 1 |
| 50 | 7 |
| 51 | 49 |
| 52 | 294 |
| 53 | 1491 |
| 54 | 6195 |
| 55 | 20195 |
| 56 | 48440 |
| 57 | 778315 |
| 58 | 70245 |
| 59 | 32571 |
| 60 | 7602 |
| 61 | 889 |
| 62 | 49 |
| 63 | 1 |
[1,1,1,1,1,2,4,4,1,1,3,9,18,21,9,1,1,4,16,48,102, 132,76,16,1,1,5,25,100,310,690,970,680,205,25,1,1, 6,36,180,735,2340,5420,8160,2550,456,36,1,1,7,49, 294,1491,6195,20195,48440,778315,70245,32571,7602, 889,49,1] |