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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 3 |
| 4 | 7 |
| 5 | 12 |
| 6 | 20 |
| 7 | 30 |
| 8 | 44 |
| 9 | 65 |
| 10 | 80 |
| 11 | 96 |
| 12 | 122 |
| 13 | 147 |
| 14 | 181 |
| 15 | 203 |
| 16 | 251 |
| 17 | 289 |
| 18 | 360 |
| 19 | 400 |
| 20 | 474 |
| 21 | 564 |
| 22 | 592 |
| 23 | 661 |
| 24 | 774 |
| 25 | 821 |
| 26 | 915 |
| 27 | 969 |
| 28 | 1015 |
| 29 | 1158 |
| 30 | 1311 |
| 31 | 1394 |
| 32 | 1522 |
| 33 | 1571 |
| 34 | 1820 |
| 35 | 1895 |
| 36 | 2028 |
| 37 | 2253 |
| 38 | 2378 |
| 39 | 2509 |
| 40 | 2779 |
| 41 | 2924 |
| 42 | 3154 |
| 43 | 3353 |
| 44 | 3590 |
| 45 | 3796 |
| 46 | 3997 |
| 47 | 4296 |
| 48 | 4432 |
| 49 | 4778 |
| 50 | 4850 |
[0,1,3,7,12,20,30,44,65,80,96,122,147,181,203,251, 289,360,400,474,564,592,661,774,821,915,969,1015, 1158,1311,1394,1522,1571,1820,1895,2028,2253,2378, 2509,2779,2924,3154,3353,3590,3796,3997,4296,4432, 4778,4850] |