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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 128 |
| 3 | 2187 |
| 4 | 16384 |
| 5 | 78125 |
| 6 | 279936 |
| 7 | 823543 |
| 8 | 2097152 |
| 9 | 4782969 |
| 10 | 10000000 |
| 11 | 19487171 |
| 12 | 35831808 |
| 13 | 62748517 |
| 14 | 105413504 |
| 15 | 170859375 |
| 16 | 268435456 |
| 17 | 410338673 |
| 18 | 612220032 |
| 19 | 893871739 |
| 20 | 1280000000 |
| 21 | 1801088541 |
| 22 | 2494357888 |
| 23 | 3404825447 |
| 24 | 4586471424 |
| 25 | 6103515625 |
| 26 | 8031810176 |
[0,1,128,2187,16384,78125,279936,823543,2097152, 4782969,10000000,19487171,35831808,62748517, 105413504,170859375,268435456,410338673,612220032, 893871739,1280000000,1801088541,2494357888, 3404825447,4586471424,6103515625,8031810176] |