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| n | a(n) |
|---|---|
| 1 | 20709 |
| 2 | 22767 |
| 3 | 26901 |
| 4 | 35223 |
| 5 | 52029 |
| 6 | 86127 |
| 7 | 155781 |
| 8 | 299463 |
| 9 | 599949 |
| 10 | 1240287 |
| 11 | 2639061 |
| 12 | 5790903 |
| 13 | 13157469 |
| 14 | 31079247 |
| 15 | 76488741 |
| 16 | 196005543 |
| 17 | 521132589 |
| 18 | 1429667007 |
| 19 | 4021576821 |
| 20 | 11529919383 |
| 21 | 33520173309 |
| 22 | 98421387567 |
| 23 | 290985935301 |
[20709,22767,26901,35223,52029,86127,155781, 299463,599949,1240287,2639061,5790903,13157469, 31079247,76488741,196005543,521132589,1429667007, 4021576821,11529919383,33520173309,98421387567, 290985935301] |