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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 0 |
| 3 | 1 |
| 4 | 8 |
| 5 | 0 |
| 6 | 1 |
| 7 | 88 |
| 8 | 136 |
| 9 | 0 |
| 10 | 1 |
| 11 | 816 |
| 12 | 6240 |
| 13 | 3968 |
| 14 | 0 |
| 15 | 1 |
| 16 | 7376 |
| 17 | 195216 |
| 18 | 513536 |
| 19 | 176896 |
| 20 | 0 |
| 21 | 1 |
| 22 | 66424 |
| 23 | 5352544 |
| 24 | 39572864 |
| 25 | 51880064 |
| 26 | 11184128 |
| 27 | 0 |
| 28 | 1 |
| 29 | 597864 |
| 30 | 139127640 |
| 31 | 2458228480 |
| 32 | 8258202240 |
| 33 | 6453433344 |
| 34 | 951878656 |
| 35 | 0 |
| 36 | 1 |
| 37 | 5380832 |
| 38 | 3535586112 |
| 39 | 137220256000 |
| 40 | 994697838080 |
| 41 | 1889844670464 |
| 42 | 978593947648 |
| 43 | 104932671488 |
| 44 | 0 |
| 45 | 1 |
| 46 | 48427552 |
| 47 | 88992306208 |
| 48 | 7233820923904 |
| 49 | 102950036177920 |
| 50 | 398800479698944 |
| 51 | 485265505927168 |
| 52 | 178568645312512 |
| 53 | 14544442556416 |
| 54 | 0 |
[1,1,0,1,8,0,1,88,136,0,1,816,6240,3968,0,1,7376, 195216,513536,176896,0,1,66424,5352544,39572864, 51880064,11184128,0,1,597864,139127640,2458228480, 8258202240,6453433344,951878656,0,1,5380832, 3535586112,137220256000,994697838080, 1889844670464,978593947648,104932671488,0,1, 48427552,88992306208,7233820923904, 102950036177920,398800479698944,485265505927168, 178568645312512,14544442556416,0] |