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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 2 |
| 9 | 3 |
| 10 | 3 |
| 11 | 2 |
| 12 | 1 |
| 13 | 1 |
| 14 | 2 |
| 15 | 3 |
| 16 | 4 |
| 17 | 5 |
| 18 | 4 |
| 19 | 3 |
| 20 | 2 |
| 21 | 1 |
| 22 | 1 |
| 23 | 3 |
| 24 | 6 |
| 25 | 10 |
| 26 | 15 |
| 27 | 19 |
| 28 | 21 |
| 29 | 21 |
| 30 | 19 |
| 31 | 15 |
| 32 | 10 |
| 33 | 6 |
| 34 | 3 |
| 35 | 1 |
| 36 | 1 |
| 37 | 3 |
| 38 | 6 |
| 39 | 10 |
| 40 | 15 |
| 41 | 21 |
| 42 | 28 |
| 43 | 33 |
| 44 | 36 |
| 45 | 37 |
| 46 | 36 |
| 47 | 33 |
| 48 | 28 |
| 49 | 21 |
| 50 | 15 |
| 51 | 10 |
| 52 | 6 |
| 53 | 3 |
| 54 | 1 |
| 55 | 1 |
| 56 | 4 |
| 57 | 10 |
| 58 | 20 |
| 59 | 35 |
| 60 | 56 |
| 61 | 84 |
| 62 | 117 |
| 63 | 152 |
| 64 | 186 |
| 65 | 216 |
| 66 | 239 |
| 67 | 252 |
| 68 | 252 |
| 69 | 239 |
| 70 | 216 |
| 71 | 186 |
| 72 | 152 |
| 73 | 117 |
| 74 | 84 |
| 75 | 56 |
| 76 | 35 |
| 77 | 20 |
| 78 | 10 |
| 79 | 4 |
| 80 | 1 |
[1,1,1,1,1,1,1,2,3,3,2,1,1,2,3,4,5,4,3,2,1,1,3,6, 10,15,19,21,21,19,15,10,6,3,1,1,3,6,10,15,21,28, 33,36,37,36,33,28,21,15,10,6,3,1,1,4,10,20,35,56, 84,117,152,186,216,239,252,252,239,216,186,152, 117,84,56,35,20,10,4,1] |