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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 110 |
| 3 | 609 |
| 4 | 2808 |
| 5 | 12191 |
| 6 | 49986 |
| 7 | 201450 |
| 8 | 795220 |
| 9 | 3098932 |
| 10 | 11944444 |
| 11 | 45648773 |
| 12 | 173194466 |
| 13 | 653072024 |
| 14 | 2449607050 |
| 15 | 9146028282 |
| 16 | 34010834368 |
| 17 | 126024445869 |
| 18 | 465494253234 |
| 19 | 1714507604630 |
| 20 | 6298717534388 |
| 21 | 23086454425976 |
| 22 | 84439440608072 |
[5,110,609,2808,12191,49986,201450,795220,3098932, 11944444,45648773,173194466,653072024,2449607050, 9146028282,34010834368,126024445869,465494253234, 1714507604630,6298717534388,23086454425976, 84439440608072] |