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| n | a(n) |
|---|---|
| 0 | 23 |
| 1 | 47 |
| 2 | 399 |
| 3 | 446 |
| 4 | 3967 |
| 5 | 8380 |
| 6 | 389447 |
| 7 | 787274 |
| 8 | 6687639 |
| 9 | 7474913 |
| 10 | 66486943 |
| 11 | 140448799 |
| 12 | 6527131697 |
| 13 | 13194712193 |
| 14 | 112084829241 |
| 15 | 125279541434 |
| 16 | 1114321160713 |
| 17 | 2353921862860 |
| 18 | 109394726852273 |
| 19 | 221143375567406 |
| 20 | 1878541731391521 |
| 21 | 2099685106958927 |
| 22 | 18676022587062937 |
[23,47,399,446,3967,8380,389447,787274,6687639, 7474913,66486943,140448799,6527131697,13194712193, 112084829241,125279541434,1114321160713, 2353921862860,109394726852273,221143375567406, 1878541731391521,2099685106958927, 18676022587062937] |