n|a(n)|迭代
--+-------------+--------------------------------------------------------------
1 | 70 | 70
2 | 97930 | 97930 -> 103670
3 | 597730 | 597730 -> 632030 -> 668290
4 | 77420770 | 77420770 -> 82246430 -> 86946370 -> 92477630
5 | 459940810 | 459940810 -> 487175990 -> 515884810 -> 546184310 -> 582130570
6 | 11835050710 | 11835050710 -> 12515648810 -> 13235404630 -> 13991713610
| | -> 14797250230 -> 15649107530
|