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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 21 |
| 5 | 17 |
| 6 | 281 |
| 7 | 65 |
| 8 | 3209 |
| 9 | 10853 |
| 10 | 47617 |
| 11 | 1025 |
| 12 | 3610317 |
| 13 | 4097 |
| 14 | 22361569 |
| 15 | 570275061 |
| 16 | 2515267681 |
| 17 | 65537 |
| 18 | 229801424781 |
| 19 | 262145 |
| 20 | 10805763650257 |
| 21 | 114290395025669 |
| 22 | 39654899669089 |
| 23 | 4194305 |
| 24 | 150858428803209493 |
| 25 | 140094551951590929 |
| 26 | 98672497472409697 |
[1,3,5,21,17,281,65,3209,10853,47617,1025,3610317, 4097,22361569,570275061,2515267681,65537, 229801424781,262145,10805763650257, 114290395025669,39654899669089,4194305, 150858428803209493,140094551951590929, 98672497472409697] |