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 | 1 |
| 2 | 2 |
| 3 | 1 |
| 4 | 6 |
| 5 | 0 |
| 6 | 1 |
| 7 | 11 |
| 8 | 6 |
| 9 | 0 |
| 10 | 1 |
| 11 | 26 |
| 12 | 12 |
| 13 | 4 |
| 14 | 0 |
| 15 | 1 |
| 16 | 61 |
| 17 | 26 |
| 18 | 10 |
| 19 | 4 |
| 20 | 0 |
| 21 | 1 |
| 22 | 132 |
| 23 | 70 |
| 24 | 26 |
| 25 | 8 |
| 26 | 4 |
| 27 | 0 |
| 28 | 1 |
| 29 | 290 |
| 30 | 174 |
| 31 | 62 |
| 32 | 24 |
| 33 | 8 |
| 34 | 4 |
| 35 | 0 |
| 36 | 1 |
| 37 | 638 |
| 38 | 404 |
| 39 | 156 |
| 40 | 60 |
| 41 | 22 |
| 42 | 8 |
| 43 | 4 |
| 44 | 0 |
| 45 | 1 |
| 46 | 1390 |
| 47 | 946 |
| 48 | 385 |
| 49 | 146 |
| 50 | 58 |
| 51 | 22 |
| 52 | 8 |
| 53 | 4 |
| 54 | 0 |
| 55 | 1 |
| 56 | 3012 |
| 57 | 2192 |
| 58 | 921 |
| 59 | 362 |
| 60 | 144 |
| 61 | 56 |
| 62 | 22 |
| 63 | 8 |
| 64 | 4 |
| 65 | 0 |
| 66 | 1 |
| 67 | 6496 |
| 68 | 5008 |
| 69 | 2177 |
| 70 | 876 |
| 71 | 350 |
| 72 | 142 |
[1,2,1,6,0,1,11,6,0,1,26,12,4,0,1,61,26,10,4,0,1, 132,70,26,8,4,0,1,290,174,62,24,8,4,0,1,638,404, 156,60,22,8,4,0,1,1390,946,385,146,58,22,8,4,0,1, 3012,2192,921,362,144,56,22,8,4,0,1,6496,5008, 2177,876,350,142] |