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| n | a(n) |
|---|---|
| 0 | 30 |
| 1 | 61 |
| 2 | 3690 |
| 3 | 7441 |
| 4 | 450150 |
| 5 | 907741 |
| 6 | 54914610 |
| 7 | 110736961 |
| 8 | 6699132270 |
| 9 | 13509001501 |
| 10 | 817239222330 |
| 11 | 1647987446161 |
| 12 | 99696485991990 |
| 13 | 201040959430141 |
| 14 | 12162154051800450 |
| 15 | 24525349063031041 |
| 16 | 1483683097833662910 |
| 17 | 2991891544730356861 |
| 18 | 180997175781655074570 |
[30,61,3690,7441,450150,907741,54914610,110736961, 6699132270,13509001501,817239222330,1647987446161, 99696485991990,201040959430141,12162154051800450, 24525349063031041,1483683097833662910, 2991891544730356861,180997175781655074570] |