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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 14 |
| 2 | 124 |
| 3 | 944 |
| 4 | 8224 |
| 5 | 73164 |
| 6 | 663592 |
| 7 | 6079164 |
| 8 | 56025792 |
| 9 | 518098976 |
| 10 | 4800482504 |
| 11 | 44528550080 |
| 12 | 413300021488 |
| 13 | 3837488395352 |
| 14 | 35638247594192 |
| 15 | 331005480808464 |
| 16 | 3074553653662208 |
| 17 | 28559120705050336 |
| 18 | 265287361541008864 |
[1,14,124,944,8224,73164,663592,6079164,56025792, 518098976,4800482504,44528550080,413300021488, 3837488395352,35638247594192,331005480808464, 3074553653662208,28559120705050336, 265287361541008864] |