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| n | a(n) |
|---|---|
| 1 | 25 |
| 2 | 625 |
| 3 | 1292 |
| 4 | 4174 |
| 5 | 9450 |
| 6 | 25076 |
| 7 | 65564 |
| 8 | 171382 |
| 9 | 433468 |
| 10 | 1150747 |
| 11 | 2968284 |
| 12 | 7722348 |
| 13 | 19756486 |
| 14 | 52194634 |
| 15 | 134386810 |
| 16 | 348854340 |
| 17 | 903166514 |
| 18 | 2358439491 |
| 19 | 6101183894 |
| 20 | 15824652924 |
| 21 | 41067569740 |
| 22 | 106834907856 |
| 23 | 276798237718 |
| 24 | 718012247867 |
[25,625,1292,4174,9450,25076,65564,171382,433468, 1150747,2968284,7722348,19756486,52194634, 134386810,348854340,903166514,2358439491, 6101183894,15824652924,41067569740,106834907856, 276798237718,718012247867] |