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| n | a(n) |
|---|---|
| 21 | 1 |
| 22 | 1 |
| 23 | 2 |
| 24 | 3 |
| 25 | 5 |
| 26 | 7 |
| 27 | 11 |
| 28 | 15 |
| 29 | 21 |
| 30 | 28 |
| 31 | 38 |
| 32 | 49 |
| 33 | 65 |
| 34 | 82 |
| 35 | 105 |
| 36 | 132 |
| 37 | 165 |
| 38 | 203 |
| 39 | 251 |
| 40 | 305 |
| 41 | 371 |
| 42 | 447 |
| 43 | 537 |
| 44 | 640 |
| 45 | 763 |
| 46 | 901 |
| 47 | 1063 |
| 48 | 1248 |
| 49 | 1461 |
| 50 | 1702 |
| 51 | 1981 |
| 52 | 2294 |
| 53 | 2652 |
| 54 | 3056 |
| 55 | 3514 |
| 56 | 4028 |
| 57 | 4611 |
| 58 | 5261 |
| 59 | 5994 |
| 60 | 6814 |
| 61 | 7732 |
| 62 | 8754 |
| 63 | 9900 |
| 64 | 11170 |
| 65 | 12587 |
| 66 | 14160 |
| 67 | 15906 |
| 68 | 17839 |
| 69 | 19985 |
| 70 | 22352 |
[1,1,2,3,5,7,11,15,21,28,38,49,65,82,105,132,165, 203,251,305,371,447,537,640,763,901,1063,1248, 1461,1702,1981,2294,2652,3056,3514,4028,4611,5261, 5994,6814,7732,8754,9900,11170,12587,14160,15906, 17839,19985,22352] |