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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 64 |
| 2 | 2744 |
| 3 | 1481544 |
| 4 | 4410944 |
| 5 | 444194947 |
| 6 | 44474744007 |
| 7 | 4970444443496 |
| 8 | 2440744441344 |
| 9 | 4408846444574424 |
| 10 | 434424163454644544 |
| 11 | 40045354844444494784 |
| 12 | 304443494462464444459 |
| 13 | 24144094248434404444864 |
| 14 | 45444444436448021414449 |
| 15 | 442063442345444443482444864 |
[0,64,2744,1481544,4410944,444194947,44474744007, 4970444443496,2440744441344,4408846444574424, 434424163454644544,40045354844444494784, 304443494462464444459,24144094248434404444864, 45444444436448021414449, 442063442345444443482444864] |