| n | a(n) |
|---|---|
| 1 | 4128422 |
| 2 | 29610374 |
| 3 | 152500334 |
| 4 | 826613438 |
| 5 | 4563772922 |
| 6 | 25723818038 |
| 7 | 138134688554 |
| 8 | 761533538294 |
| 9 | 4141845409538 |
| 10 | 22819902563342 |
| 11 | 123961103374538 |
| 12 | 678268376581502 |
| 13 | 3687728534652242 |
| 14 | 20228210090452262 |
| 15 | 110260687991850938 |
[4128422,29610374,152500334,826613438,4563772922, 25723818038,138134688554,761533538294, 4141845409538,22819902563342,123961103374538, 678268376581502,3687728534652242, 20228210090452262,110260687991850938] |