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| n | a(n) |
|---|---|
| 1 | 620 |
| 2 | 13407 |
| 3 | 66061 |
| 4 | 266533 |
| 5 | 282401 |
| 6 | 416641 |
| 7 | 3507607 |
| 8 | 7036153 |
| 9 | 7622243 |
| 10 | 10327663 |
| 11 | 17735167 |
| 12 | 34802143 |
| 13 | 57653483 |
| 14 | 86357113 |
| 15 | 86546363 |
| 16 | 91203611 |
| 17 | 112777747 |
| 18 | 121825337 |
| 19 | 124283381 |
| 20 | 127316869 |
| 21 | 176080309 |
| 22 | 216687451 |
| 23 | 218172511 |
| 24 | 231811037 |
| 25 | 243238447 |
| 26 | 263364883 |
| 27 | 272368301 |
[620,13407,66061,266533,282401,416641,3507607, 7036153,7622243,10327663,17735167,34802143, 57653483,86357113,86546363,91203611,112777747, 121825337,124283381,127316869,176080309,216687451, 218172511,231811037,243238447,263364883,272368301] |