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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 5 |
| 7 | 6 |
| 8 | 9 |
| 9 | 13 |
| 10 | 22 |
| 11 | 26 |
| 12 | 38 |
| 13 | 48 |
| 14 | 66 |
| 15 | 89 |
| 16 | 113 |
| 17 | 142 |
| 18 | 185 |
| 19 | 230 |
| 20 | 289 |
| 21 | 368 |
| 22 | 449 |
| 23 | 554 |
| 24 | 679 |
| 25 | 831 |
| 26 | 1003 |
| 27 | 1224 |
| 28 | 1474 |
| 29 | 1767 |
| 30 | 2117 |
| 31 | 2528 |
| 32 | 2996 |
| 33 | 3568 |
| 34 | 4206 |
| 35 | 4967 |
| 36 | 5855 |
| 37 | 6862 |
| 38 | 8027 |
| 39 | 9391 |
| 40 | 10943 |
| 41 | 12724 |
| 42 | 14785 |
| 43 | 17124 |
| 44 | 19807 |
| 45 | 22898 |
| 46 | 26376 |
| 47 | 30345 |
| 48 | 34893 |
| 49 | 40013 |
[0,0,0,1,1,2,5,6,9,13,22,26,38,48,66,89,113,142, 185,230,289,368,449,554,679,831,1003,1224,1474, 1767,2117,2528,2996,3568,4206,4967,5855,6862,8027, 9391,10943,12724,14785,17124,19807,22898,26376, 30345,34893,40013] |