n | a(n) |
---|---|
1 | 4 |
2 | 2244004 |
3 | 42224004 |
4 | 424442404 |
5 | 22200404004 |
6 | 4024044024004 |
7 | 40244204444224 |
8 | 2242202244202404 |
9 | 40024004400240004 |
10 | 40402004202240004 |
11 | 400024000440002400004 |
12 | 2202400402420402044004 |
13 | 4000024000044000024000004 |
14 | 40000024000004400000240000004 |
15 | 2440040242204024220420044444224 |
[4,2244004,42224004,424442404,22200404004, 4024044024004,40244204444224,2242202244202404, 40024004400240004,40402004202240004, 400024000440002400004,2202400402420402044004, 4000024000044000024000004, 40000024000004400000240000004, 2440040242204024220420044444224] |