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| n | a(n) |
|---|---|
| 1 | 20 |
| 2 | 125 |
| 3 | 440 |
| 4 | 1153 |
| 5 | 2524 |
| 6 | 4893 |
| 7 | 8688 |
| 8 | 14433 |
| 9 | 22756 |
| 10 | 34397 |
| 11 | 50216 |
| 12 | 71201 |
| 13 | 98476 |
| 14 | 133309 |
| 15 | 177120 |
| 16 | 231489 |
| 17 | 298164 |
| 18 | 379069 |
| 19 | 476312 |
| 20 | 592193 |
| 21 | 729212 |
| 22 | 890077 |
| 23 | 1077712 |
| 24 | 1295265 |
| 25 | 1546116 |
| 26 | 1833885 |
| 27 | 2162440 |
| 28 | 2535905 |
| 29 | 2958668 |
| 30 | 3435389 |
| 31 | 3971008 |
| 32 | 4570753 |
[20,125,440,1153,2524,4893,8688,14433,22756,34397, 50216,71201,98476,133309,177120,231489,298164, 379069,476312,592193,729212,890077,1077712, 1295265,1546116,1833885,2162440,2535905,2958668, 3435389,3971008,4570753] |