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A279327 as a simple table
| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 2 |
| 5 | 0 |
| 6 | 2 |
| 7 | 4 |
| 8 | 16 |
| 9 | 16 |
| 10 | 4 |
| 11 | 14 |
| 12 | 152 |
| 13 | 664 |
| 14 | 152 |
| 15 | 14 |
| 16 | 40 |
| 17 | 1536 |
| 18 | 16092 |
| 19 | 16092 |
| 20 | 1536 |
| 21 | 40 |
| 22 | 120 |
| 23 | 13776 |
| 24 | 384180 |
| 25 | 1079496 |
| 26 | 384180 |
| 27 | 13776 |
| 28 | 120 |
| 29 | 352 |
| 30 | 118664 |
| 31 | 8854880 |
| 32 | 73482624 |
| 33 | 73482624 |
| 34 | 8854880 |
| 35 | 118664 |
| 36 | 352 |
| 37 | 1032 |
| 38 | 991616 |
| 39 | 198179722 |
| 40 | 4808164964 |
[0,0,0,2,0,2,4,16,16,4,14,152,664,152,14,40,1536, 16092,16092,1536,40,120,13776,384180,1079496, 384180,13776,120,352,118664,8854880,73482624, 73482624,8854880,118664,352,1032,991616,198179722, 4808164964] |