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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 671 |
| 3 | 1261 |
| 4 | 6371 |
| 5 | 127499 |
| 6 | 377567 |
| 7 | 897623 |
| 8 | 1984009 |
| 9 | 4266107 |
| 10 | 4870741 |
| 11 | 4974061 |
| 12 | 5491823 |
| 13 | 24923137 |
| 14 | 26784757 |
| 15 | 28192247 |
| 16 | 33601933 |
| 17 | 36295069 |
| 18 | 44091347 |
| 19 | 44988481 |
| 20 | 61717319 |
| 21 | 95327051 |
| 22 | 97587433 |
| 23 | 99712367 |
| 24 | 142798573 |
| 25 | 149982097 |
| 26 | 193405967 |
[4,671,1261,6371,127499,377567,897623,1984009, 4266107,4870741,4974061,5491823,24923137,26784757, 28192247,33601933,36295069,44091347,44988481, 61717319,95327051,97587433,99712367,142798573, 149982097,193405967] |