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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 3 |
| 7 | 4 |
| 8 | 6 |
| 9 | 5 |
| 10 | 11 |
| 11 | 12 |
| 12 | 15 |
| 13 | 21 |
| 14 | 26 |
| 15 | 30 |
| 16 | 41 |
| 17 | 52 |
| 18 | 56 |
| 19 | 82 |
| 20 | 99 |
| 21 | 118 |
| 22 | 144 |
| 23 | 189 |
| 24 | 221 |
| 25 | 279 |
| 26 | 327 |
| 27 | 405 |
| 28 | 491 |
| 29 | 600 |
| 30 | 699 |
| 31 | 860 |
| 32 | 1038 |
| 33 | 1230 |
| 34 | 1470 |
| 35 | 1754 |
| 36 | 2106 |
| 37 | 2487 |
| 38 | 2970 |
| 39 | 3489 |
| 40 | 4148 |
| 41 | 4883 |
| 42 | 5779 |
| 43 | 6763 |
| 44 | 8024 |
| 45 | 9284 |
| 46 | 11006 |
| 47 | 12780 |
| 48 | 15029 |
| 49 | 17452 |
| 50 | 20405 |
| 51 | 23660 |
[0,1,1,1,2,3,3,4,6,5,11,12,15,21,26,30,41,52,56, 82,99,118,144,189,221,279,327,405,491,600,699,860, 1038,1230,1470,1754,2106,2487,2970,3489,4148,4883, 5779,6763,8024,9284,11006,12780,15029,17452,20405, 23660] |