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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 25 |
| 3 | 43 |
| 4 | 229 |
| 5 | 799 |
| 6 | 3237 |
| 7 | 16975 |
| 8 | 58813 |
| 9 | 262975 |
| 10 | 1273157 |
| 11 | 6142655 |
| 12 | 26877117 |
| 13 | 132748947 |
| 14 | 716258257 |
| 15 | 3072240791 |
| 16 | 15826485913 |
| 17 | 73962438259 |
| 18 | 366204124645 |
| 19 | 1830090585655 |
| 20 | 8942164068501 |
| 21 | 44436414147403 |
| 22 | 225094702418657 |
[5,25,43,229,799,3237,16975,58813,262975,1273157, 6142655,26877117,132748947,716258257,3072240791, 15826485913,73962438259,366204124645, 1830090585655,8942164068501,44436414147403, 225094702418657] |