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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 126 |
| 2 | 126 |
| 3 | 312 |
| 4 | 882 |
| 5 | 312 |
| 6 | 630 |
| 7 | 3276 |
| 8 | 3276 |
| 9 | 630 |
| 10 | 1116 |
| 11 | 8820 |
| 12 | 16224 |
| 13 | 8820 |
| 14 | 1116 |
| 15 | 1806 |
| 16 | 19530 |
| 17 | 54600 |
| 18 | 54600 |
| 19 | 19530 |
| 20 | 1806 |
| 21 | 2736 |
| 22 | 37926 |
| 23 | 145080 |
| 24 | 220500 |
| 25 | 145080 |
| 26 | 37926 |
| 27 | 2736 |
| 28 | 3942 |
| 29 | 67032 |
| 30 | 328692 |
| 31 | 683550 |
| 32 | 683550 |
| 33 | 328692 |
| 34 | 67032 |
| 35 | 3942 |
| 36 | 5460 |
| 37 | 110376 |
[1,126,126,312,882,312,630,3276,3276,630,1116, 8820,16224,8820,1116,1806,19530,54600,54600,19530, 1806,2736,37926,145080,220500,145080,37926,2736, 3942,67032,328692,683550,683550,328692,67032,3942, 5460,110376] |