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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 4 |
| 4 | 6 |
| 5 | 9 |
| 6 | 121 |
| 7 | 222 |
| 8 | 717 |
| 9 | 989 |
| 10 | 1331 |
| 11 | 10201 |
| 12 | 13231 |
| 13 | 15251 |
| 14 | 15751 |
| 15 | 15851 |
| 16 | 18281 |
| 17 | 19291 |
| 18 | 28882 |
| 19 | 28982 |
| 20 | 31613 |
| 21 | 34043 |
| 22 | 35653 |
| 23 | 37073 |
| 24 | 37673 |
| 25 | 37873 |
| 26 | 38383 |
| 27 | 38683 |
| 28 | 40304 |
| 29 | 41814 |
| 30 | 50405 |
| 31 | 97079 |
| 32 | 98789 |
| 33 | 99899 |
| 34 | 536635 |
| 35 | 913319 |
| 36 | 980089 |
| 37 | 1030301 |
| 38 | 1115111 |
| 39 | 1226221 |
| 40 | 1336331 |
| 41 | 1794971 |
| 42 | 2630362 |
| 43 | 2882882 |
| 44 | 3303033 |
[0,1,4,6,9,121,222,717,989,1331,10201,13231,15251, 15751,15851,18281,19291,28882,28982,31613,34043, 35653,37073,37673,37873,38383,38683,40304,41814, 50405,97079,98789,99899,536635,913319,980089, 1030301,1115111,1226221,1336331,1794971,2630362, 2882882,3303033] |