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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 8 |
| 6 | 0 |
| 7 | 16 |
| 8 | 64 |
| 9 | 240 |
| 10 | 832 |
| 11 | 2976 |
| 12 | 11008 |
| 13 | 40624 |
| 14 | 150400 |
| 15 | 559584 |
| 16 | 2090112 |
| 17 | 7832928 |
| 18 | 29432704 |
| 19 | 110863680 |
| 20 | 418479104 |
| 21 | 1582628656 |
| 22 | 5995379456 |
| 23 | 22746329952 |
| 24 | 86417102720 |
| 25 | 328720669216 |
| 26 | 1251831214976 |
| 27 | 4772155518656 |
| 28 | 18209463672320 |
| 29 | 69544295350240 |
| 30 | 265814912973056 |
| 31 | 1016776398337728 |
| 32 | 3892040452165888 |
| 33 | 14907843267549376 |
[0,0,0,0,0,8,0,16,64,240,832,2976,11008,40624, 150400,559584,2090112,7832928,29432704,110863680, 418479104,1582628656,5995379456,22746329952, 86417102720,328720669216,1251831214976, 4772155518656,18209463672320,69544295350240, 265814912973056,1016776398337728,3892040452165888, 14907843267549376] |