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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 9 |
| 3 | 25 |
| 4 | 64 |
| 5 | 169 |
| 6 | 441 |
| 7 | 1156 |
| 8 | 3025 |
| 9 | 7921 |
| 10 | 20736 |
| 11 | 54289 |
| 12 | 142129 |
| 13 | 372100 |
| 14 | 974169 |
| 15 | 2550409 |
| 16 | 6677056 |
| 17 | 17480761 |
| 18 | 45765225 |
| 19 | 119814916 |
| 20 | 313679521 |
| 21 | 821223649 |
| 22 | 2149991424 |
| 23 | 5628750625 |
| 24 | 14736260449 |
| 25 | 38580030724 |
| 26 | 101003831721 |
| 27 | 264431464441 |
[5,9,25,64,169,441,1156,3025,7921,20736,54289, 142129,372100,974169,2550409,6677056,17480761, 45765225,119814916,313679521,821223649,2149991424, 5628750625,14736260449,38580030724,101003831721, 264431464441] |