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| n | a(n) |
|---|---|
| 1 | 28 |
| 2 | 784 |
| 3 | 3808 |
| 4 | 11452 |
| 5 | 26908 |
| 6 | 54208 |
| 7 | 98224 |
| 8 | 164668 |
| 9 | 260092 |
| 10 | 391888 |
| 11 | 568288 |
| 12 | 798364 |
| 13 | 1092028 |
| 14 | 1460032 |
| 15 | 1913968 |
| 16 | 2466268 |
| 17 | 3130204 |
| 18 | 3919888 |
| 19 | 4850272 |
| 20 | 5937148 |
| 21 | 7197148 |
| 22 | 8647744 |
| 23 | 10307248 |
| 24 | 12194812 |
| 25 | 14330428 |
| 26 | 16734928 |
| 27 | 19429984 |
| 28 | 22438108 |
| 29 | 25782652 |
[28,784,3808,11452,26908,54208,98224,164668, 260092,391888,568288,798364,1092028,1460032, 1913968,2466268,3130204,3919888,4850272,5937148, 7197148,8647744,10307248,12194812,14330428, 16734928,19429984,22438108,25782652] |