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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 4 |
| 7 | 5 |
| 8 | 7 |
| 9 | 10 |
| 10 | 15 |
| 11 | 19 |
| 12 | 28 |
| 13 | 34 |
| 14 | 46 |
| 15 | 61 |
| 16 | 81 |
| 17 | 101 |
| 18 | 137 |
| 19 | 168 |
| 20 | 218 |
| 21 | 273 |
| 22 | 349 |
| 23 | 431 |
| 24 | 550 |
| 25 | 676 |
| 26 | 849 |
| 27 | 1043 |
| 28 | 1298 |
| 29 | 1579 |
| 30 | 1959 |
| 31 | 2373 |
| 32 | 2913 |
| 33 | 3526 |
| 34 | 4301 |
| 35 | 5178 |
| 36 | 6293 |
| 37 | 7544 |
| 38 | 9109 |
| 39 | 10895 |
| 40 | 13091 |
| 41 | 15591 |
| 42 | 18666 |
| 43 | 22158 |
| 44 | 26402 |
| 45 | 31269 |
| 46 | 37120 |
| 47 | 43813 |
| 48 | 51853 |
| 49 | 61027 |
[0,0,0,1,1,2,4,5,7,10,15,19,28,34,46,61,81,101, 137,168,218,273,349,431,550,676,849,1043,1298, 1579,1959,2373,2913,3526,4301,5178,6293,7544,9109, 10895,13091,15591,18666,22158,26402,31269,37120, 43813,51853,61027] |