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A013026 as a simple table
| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | -8 |
| 2 | 34 |
| 3 | -296 |
| 4 | 4546 |
| 5 | -72712 |
| 6 | 1843170 |
| 7 | -56506024 |
| 8 | 1910439298 |
| 9 | -90064672520 |
| 10 | 4400756254114 |
| 11 | -258933905154856 |
| 12 | 18174184183561026 |
| 13 | -1313346930072248584 |
| 14 | 116965585133798836578 |
[2,-8,34,-296,4546,-72712,1843170,-56506024, 1910439298,-90064672520,4400756254114, -258933905154856,18174184183561026, -1313346930072248584,116965585133798836578] |