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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 10 |
| 3 | 88 |
| 4 | 1414 |
| 5 | 46648 |
| 6 | 3026028 |
| 7 | 373615284 |
| 8 | 92794268694 |
| 9 | 46265940243794 |
| 10 | 44694344296430280 |
| 11 | 86689242777435107120 |
| 12 | 340600515192402995860548 |
| 13 | 2624923513793602103874986688 |
| 14 | 40749869155795866122979193705136 |
| 15 | 1290021269710020392957588463834452744 |
[1,2,10,88,1414,46648,3026028,373615284, 92794268694,46265940243794,44694344296430280, 86689242777435107120,340600515192402995860548, 2624923513793602103874986688, 40749869155795866122979193705136, 1290021269710020392957588463834452744] |