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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 11 |
| 3 | 19 |
| 4 | 89 |
| 5 | 151 |
| 6 | 701 |
| 7 | 1189 |
| 8 | 5519 |
| 9 | 9361 |
| 10 | 43451 |
| 11 | 73699 |
| 12 | 342089 |
| 13 | 580231 |
| 14 | 2693261 |
| 15 | 4568149 |
| 16 | 21203999 |
| 17 | 35964961 |
| 18 | 166938731 |
| 19 | 283151539 |
| 20 | 1314305849 |
| 21 | 2229247351 |
| 22 | 10347508061 |
| 23 | 17550827269 |
| 24 | 81465758639 |
| 25 | 138177370801 |
| 26 | 641378561051 |
| 27 | 1087868139139 |
| 28 | 5049562729769 |
[1,11,19,89,151,701,1189,5519,9361,43451,73699, 342089,580231,2693261,4568149,21203999,35964961, 166938731,283151539,1314305849,2229247351, 10347508061,17550827269,81465758639,138177370801, 641378561051,1087868139139,5049562729769] |