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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 4 |
| 2 | 19 |
| 3 | 40 |
| 4 | 68 |
| 5 | 104 |
| 6 | 149 |
| 7 | 204 |
| 8 | 270 |
| 9 | 348 |
| 10 | 439 |
| 11 | 544 |
| 12 | 664 |
| 13 | 800 |
| 14 | 953 |
| 15 | 1124 |
| 16 | 1314 |
| 17 | 1524 |
| 18 | 1755 |
| 19 | 2008 |
| 20 | 2284 |
| 21 | 2584 |
| 22 | 2909 |
| 23 | 3260 |
| 24 | 3638 |
| 25 | 4044 |
| 26 | 4479 |
| 27 | 4944 |
| 28 | 5440 |
| 29 | 5968 |
| 30 | 6529 |
| 31 | 7124 |
| 32 | 7754 |
| 33 | 8420 |
| 34 | 9123 |
| 35 | 9864 |
| 36 | 10644 |
| 37 | 11464 |
| 38 | 12325 |
| 39 | 13228 |
| 40 | 14174 |
| 41 | 15164 |
[0,4,19,40,68,104,149,204,270,348,439,544,664,800, 953,1124,1314,1524,1755,2008,2284,2584,2909,3260, 3638,4044,4479,4944,5440,5968,6529,7124,7754,8420, 9123,9864,10644,11464,12325,13228,14174,15164] |