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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 44 |
| 3 | 223 |
| 4 | 1148 |
| 5 | 5170 |
| 6 | 23156 |
| 7 | 99057 |
| 8 | 418924 |
| 9 | 1736105 |
| 10 | 7122856 |
| 11 | 28898144 |
| 12 | 116346184 |
| 13 | 465034573 |
| 14 | 1848051516 |
| 15 | 7306228767 |
| 16 | 28758043956 |
| 17 | 112751067666 |
| 18 | 440538622908 |
| 19 | 1715952146561 |
| 20 | 6665380161836 |
| 21 | 25826102521633 |
| 22 | 99840968906384 |
[5,44,223,1148,5170,23156,99057,418924,1736105, 7122856,28898144,116346184,465034573,1848051516, 7306228767,28758043956,112751067666,440538622908, 1715952146561,6665380161836,25826102521633, 99840968906384] |