The OEIS is supported by the many generous donors to the OEIS Foundation.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 6 |
| 9 | 0 |
| 10 | 0 |
| 11 | 0 |
| 12 | 24 |
| 13 | 30 |
| 14 | 0 |
| 15 | 0 |
| 16 | 0 |
| 17 | 66 |
| 18 | 270 |
| 19 | 252 |
| 20 | 0 |
| 21 | 0 |
| 22 | 0 |
| 23 | 120 |
| 24 | 1650 |
| 25 | 6822 |
| 26 | 2298 |
| 27 | 0 |
| 28 | 0 |
| 29 | 0 |
| 30 | 198 |
| 31 | 7344 |
| 32 | 108348 |
| 33 | 307494 |
| 34 | 28440 |
| 35 | 0 |
| 36 | 0 |
| 37 | 0 |
| 38 | 288 |
| 39 | 24954 |
| 40 | 1144464 |
| 41 | 15754872 |
| 42 | 27582438 |
| 43 | 460494 |
| 44 | 0 |
| 45 | 0 |
| 46 | 0 |
| 47 | 402 |
| 48 | 68838 |
| 49 | 8559378 |
| 50 | 469037376 |
| 51 | 5805948474 |
| 52 | 4875050400 |
[0,0,0,0,0,0,0,6,0,0,0,24,30,0,0,0,66,270,252,0,0, 0,120,1650,6822,2298,0,0,0,198,7344,108348,307494, 28440,0,0,0,288,24954,1144464,15754872,27582438, 460494,0,0,0,402,68838,8559378,469037376, 5805948474,4875050400] |