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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | 1 |
| 10 | 2 |
| 11 | 3 |
| 12 | 4 |
| 13 | 5 |
| 14 | 6 |
| 15 | 7 |
| 16 | 8 |
| 17 | 7 |
| 18 | 6 |
| 19 | 5 |
| 20 | 4 |
| 21 | 3 |
| 22 | 2 |
| 23 | 1 |
| 24 | 1 |
| 25 | 3 |
| 26 | 6 |
| 27 | 10 |
| 28 | 15 |
| 29 | 21 |
| 30 | 28 |
| 31 | 36 |
| 32 | 42 |
| 33 | 46 |
| 34 | 48 |
| 35 | 48 |
| 36 | 46 |
| 37 | 42 |
| 38 | 36 |
| 39 | 28 |
| 40 | 21 |
| 41 | 15 |
| 42 | 10 |
| 43 | 6 |
| 44 | 3 |
| 45 | 1 |
| 46 | 1 |
| 47 | 4 |
| 48 | 10 |
| 49 | 20 |
| 50 | 35 |
| 51 | 56 |
| 52 | 84 |
| 53 | 120 |
| 54 | 161 |
| 55 | 204 |
| 56 | 246 |
| 57 | 284 |
| 58 | 315 |
| 59 | 336 |
| 60 | 344 |
| 61 | 336 |
| 62 | 315 |
| 63 | 284 |
| 64 | 246 |
| 65 | 204 |
| 66 | 161 |
| 67 | 120 |
| 68 | 84 |
| 69 | 56 |
| 70 | 35 |
[1,1,1,1,1,1,1,1,1,1,2,3,4,5,6,7,8,7,6,5,4,3,2,1, 1,3,6,10,15,21,28,36,42,46,48,48,46,42,36,28,21, 15,10,6,3,1,1,4,10,20,35,56,84,120,161,204,246, 284,315,336,344,336,315,284,246,204,161,120,84,56, 35] |