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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 10 |
| 2 | 590 |
| 3 | 87730 |
| 4 | 24386030 |
| 5 | 10896056050 |
| 6 | 7140660673070 |
| 7 | 6452172716731570 |
| 8 | 7688003030273049710 |
| 9 | 11679689713099591922290 |
| 10 | 22034907735675944799243950 |
| 11 | 50541665200040978421599836210 |
| 12 | 138511221399376147951707017623790 |
| 13 | 446986750662532432703671725548281330 |
| 14 | 1677694112006573410256120810193681597230 |
| 15 | 7246501185695514998554969680297128881865650 |
[1,10,590,87730,24386030,10896056050, 7140660673070,6452172716731570, 7688003030273049710,11679689713099591922290, 22034907735675944799243950, 50541665200040978421599836210, 138511221399376147951707017623790, 446986750662532432703671725548281330, 1677694112006573410256120810193681597230, 7246501185695514998554969680297128881865650] |