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A038667 as a simple table
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 2 |
| 6 | 6 |
| 7 | 2 |
| 8 | 18 |
| 9 | 54 |
| 10 | 30 |
| 11 | 36 |
| 12 | 576 |
| 13 | 576 |
| 14 | 840 |
| 15 | 6120 |
| 16 | 24480 |
| 17 | 20160 |
| 18 | 93696 |
| 19 | 420480 |
| 20 | 800640 |
| 21 | 1305696 |
| 22 | 7983360 |
| 23 | 80313120 |
| 24 | 65318400 |
| 25 | 326592000 |
| 26 | 2286926400 |
| 27 | 3002360256 |
| 28 | 13680979200 |
| 29 | 37744574400 |
| 30 | 797369149440 |
| 31 | 1763653953600 |
| 32 | 16753029012720 |
| 33 | 16880461678080 |
| 34 | 10176199188480 |
| 35 | 26657309952000 |
[0,0,1,1,2,2,6,2,18,54,30,36,576,576,840,6120, 24480,20160,93696,420480,800640,1305696,7983360, 80313120,65318400,326592000,2286926400,3002360256, 13680979200,37744574400,797369149440, 1763653953600,16753029012720,16880461678080, 10176199188480,26657309952000] |