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| n | a(n) |
|---|---|
| 1 | 2243 |
| 2 | 11280 |
| 3 | 24893 |
| 4 | 59215 |
| 5 | 123396 |
| 6 | 262200 |
| 7 | 533327 |
| 8 | 1107413 |
| 9 | 2297926 |
| 10 | 4888898 |
| 11 | 10549941 |
| 12 | 23231818 |
| 13 | 51804184 |
| 14 | 116876925 |
| 15 | 265531368 |
| 16 | 606511919 |
| 17 | 1389607505 |
| 18 | 3190603867 |
| 19 | 7334375879 |
| 20 | 16872832209 |
| 21 | 38832132163 |
| 22 | 89393731501 |
| 23 | 205817073537 |
[2243,11280,24893,59215,123396,262200,533327, 1107413,2297926,4888898,10549941,23231818, 51804184,116876925,265531368,606511919,1389607505, 3190603867,7334375879,16872832209,38832132163, 89393731501,205817073537] |