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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | 2 |
| 10 | 2 |
| 11 | 3 |
| 12 | 4 |
| 13 | 5 |
| 14 | 6 |
| 15 | 9 |
| 16 | 12 |
| 17 | 16 |
| 18 | 23 |
| 19 | 31 |
| 20 | 43 |
| 21 | 61 |
| 22 | 85 |
| 23 | 118 |
| 24 | 168 |
| 25 | 236 |
| 26 | 333 |
| 27 | 475 |
| 28 | 674 |
| 29 | 958 |
| 30 | 1369 |
| 31 | 1956 |
| 32 | 2796 |
| 33 | 4013 |
| 34 | 5758 |
| 35 | 8270 |
| 36 | 11905 |
| 37 | 17148 |
| 38 | 24720 |
| 39 | 35693 |
| 40 | 51572 |
| 41 | 74573 |
| 42 | 107957 |
| 43 | 156399 |
| 44 | 226740 |
| 45 | 329013 |
| 46 | 477738 |
| 47 | 694148 |
| 48 | 1009326 |
| 49 | 1468526 |
[0,1,1,1,1,1,1,1,1,2,2,3,4,5,6,9,12,16,23,31,43, 61,85,118,168,236,333,475,674,958,1369,1956,2796, 4013,5758,8270,11905,17148,24720,35693,51572, 74573,107957,156399,226740,329013,477738,694148, 1009326,1468526] |