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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 1 |
| 7 | 2 |
| 8 | 5 |
| 9 | 9 |
| 10 | 13 |
| 11 | 21 |
| 12 | 29 |
| 13 | 39 |
| 14 | 49 |
| 15 | 68 |
| 16 | 79 |
| 17 | 101 |
| 18 | 116 |
| 19 | 145 |
| 20 | 167 |
| 21 | 196 |
| 22 | 221 |
| 23 | 262 |
| 24 | 287 |
| 25 | 335 |
| 26 | 368 |
| 27 | 412 |
| 28 | 460 |
| 29 | 512 |
| 30 | 554 |
| 31 | 617 |
| 32 | 673 |
| 33 | 723 |
| 34 | 800 |
| 35 | 865 |
| 36 | 925 |
| 37 | 1001 |
| 38 | 1090 |
| 39 | 1140 |
| 40 | 1250 |
| 41 | 1317 |
| 42 | 1418 |
| 43 | 1493 |
| 44 | 1619 |
| 45 | 1665 |
| 46 | 1828 |
| 47 | 1884 |
| 48 | 2022 |
| 49 | 2098 |
| 50 | 2275 |
| 51 | 2308 |
| 52 | 2520 |
| 53 | 2564 |
[0,0,0,0,0,1,2,5,9,13,21,29,39,49,68,79,101,116, 145,167,196,221,262,287,335,368,412,460,512,554, 617,673,723,800,865,925,1001,1090,1140,1250,1317, 1418,1493,1619,1665,1828,1884,2022,2098,2275,2308, 2520,2564] |