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) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 2 |
| 5 | 0 |
| 6 | 0 |
| 7 | 3 |
| 8 | 6 |
| 9 | 0 |
| 10 | 0 |
| 11 | 4 |
| 12 | 32 |
| 13 | 12 |
| 14 | 0 |
| 15 | 0 |
| 16 | 5 |
| 17 | 120 |
| 18 | 180 |
| 19 | 20 |
| 20 | 0 |
| 21 | 0 |
| 22 | 6 |
| 23 | 384 |
| 24 | 1458 |
| 25 | 768 |
| 26 | 30 |
| 27 | 0 |
| 28 | 0 |
| 29 | 7 |
| 30 | 1120 |
| 31 | 9072 |
| 32 | 12096 |
| 33 | 2800 |
| 34 | 42 |
| 35 | 0 |
| 36 | 0 |
| 37 | 8 |
| 38 | 3072 |
| 39 | 48600 |
| 40 | 131072 |
| 41 | 81000 |
| 42 | 9216 |
| 43 | 56 |
| 44 | 0 |
| 45 | 0 |
| 46 | 9 |
| 47 | 8064 |
| 48 | 236196 |
| 49 | 1152000 |
| 50 | 1440000 |
| 51 | 472392 |
| 52 | 28224 |
| 53 | 72 |
| 54 | 0 |
| 55 | 0 |
| 56 | 10 |
| 57 | 20480 |
| 58 | 1071630 |
| 59 | 8847360 |
| 60 | 19531250 |
| 61 | 13271040 |
| 62 | 2500470 |
| 63 | 81920 |
| 64 | 90 |
| 65 | 0 |
[1,0,1,0,2,0,0,3,6,0,0,4,32,12,0,0,5,120,180,20,0, 0,6,384,1458,768,30,0,0,7,1120,9072,12096,2800,42, 0,0,8,3072,48600,131072,81000,9216,56,0,0,9,8064, 236196,1152000,1440000,472392,28224,72,0,0,10, 20480,1071630,8847360,19531250,13271040,2500470, 81920,90,0] |