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| n | a(n) |
|---|---|
| 1 | 10 |
| 2 | 25 |
| 3 | 184 |
| 4 | 927 |
| 5 | 4415 |
| 6 | 19083 |
| 7 | 79295 |
| 8 | 321566 |
| 9 | 1259568 |
| 10 | 4717825 |
| 11 | 16857776 |
| 12 | 57606698 |
| 13 | 189020066 |
| 14 | 597912638 |
| 15 | 1829586732 |
| 16 | 5430748522 |
| 17 | 15671204978 |
| 18 | 44036228316 |
| 19 | 120655436611 |
| 20 | 322669774355 |
| 21 | 842965290520 |
| 22 | 2152858503411 |
| 23 | 5378480168433 |
[10,25,184,927,4415,19083,79295,321566,1259568, 4717825,16857776,57606698,189020066,597912638, 1829586732,5430748522,15671204978,44036228316, 120655436611,322669774355,842965290520, 2152858503411,5378480168433] |