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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 21 |
| 2 | 41 |
| 3 | 83 |
| 4 | 123 |
| 5 | 186 |
| 6 | 246 |
| 7 | 330 |
| 8 | 410 |
| 9 | 515 |
| 10 | 615 |
| 11 | 741 |
| 12 | 861 |
| 13 | 1008 |
| 14 | 1148 |
| 15 | 1316 |
| 16 | 1476 |
| 17 | 1665 |
| 18 | 1845 |
| 19 | 2055 |
| 20 | 2255 |
| 21 | 2486 |
| 22 | 2706 |
| 23 | 2958 |
| 24 | 3198 |
| 25 | 3471 |
| 26 | 3731 |
| 27 | 4025 |
| 28 | 4305 |
| 29 | 4620 |
| 30 | 4920 |
| 31 | 5256 |
| 32 | 5576 |
| 33 | 5933 |
| 34 | 6273 |
| 35 | 6651 |
| 36 | 7011 |
| 37 | 7410 |
| 38 | 7790 |
| 39 | 8210 |
| 40 | 8610 |
| 41 | 9051 |
| 42 | 9471 |
[0,21,41,83,123,186,246,330,410,515,615,741,861, 1008,1148,1316,1476,1665,1845,2055,2255,2486,2706, 2958,3198,3471,3731,4025,4305,4620,4920,5256,5576, 5933,6273,6651,7011,7410,7790,8210,8610,9051,9471] |