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A221441 as a simple table
| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 33 |
| 3 | 221 |
| 4 | 1473 |
| 5 | 9829 |
| 6 | 65569 |
| 7 | 437437 |
| 8 | 2918273 |
| 9 | 19468741 |
| 10 | 129882145 |
| 11 | 866485149 |
| 12 | 5780598081 |
| 13 | 38564209189 |
| 14 | 257274109985 |
| 15 | 1716357449085 |
| 16 | 11450366664449 |
| 17 | 76389039372165 |
| 18 | 509615587618849 |
| 19 | 3399807737852509 |
| 20 | 22681199192442049 |
[5,33,221,1473,9829,65569,437437,2918273,19468741, 129882145,866485149,5780598081,38564209189, 257274109985,1716357449085,11450366664449, 76389039372165,509615587618849,3399807737852509, 22681199192442049] |