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 | 1 |
| 6 | 0 |
| 7 | 0 |
| 8 | 2 |
| 9 | 2 |
| 10 | 0 |
| 11 | 0 |
| 12 | 4 |
| 13 | 2 |
| 14 | 4 |
| 15 | 0 |
| 16 | 0 |
| 17 | 9 |
| 18 | 8 |
| 19 | 8 |
| 20 | 9 |
| 21 | 0 |
| 22 | 0 |
| 23 | 19 |
| 24 | 22 |
| 25 | 28 |
| 26 | 22 |
| 27 | 19 |
| 28 | 0 |
| 29 | 0 |
| 30 | 41 |
| 31 | 68 |
| 32 | 142 |
| 33 | 142 |
| 34 | 68 |
| 35 | 41 |
| 36 | 0 |
| 37 | 0 |
| 38 | 88 |
| 39 | 212 |
| 40 | 540 |
| 41 | 1146 |
| 42 | 540 |
| 43 | 212 |
| 44 | 88 |
| 45 | 0 |
| 46 | 0 |
| 47 | 189 |
| 48 | 652 |
| 49 | 2585 |
| 50 | 7456 |
| 51 | 7456 |
| 52 | 2585 |
| 53 | 652 |
| 54 | 189 |
| 55 | 0 |
| 56 | 0 |
| 57 | 406 |
| 58 | 2017 |
| 59 | 11343 |
| 60 | 55663 |
| 61 | 78195 |
| 62 | 55663 |
| 63 | 11343 |
| 64 | 2017 |
| 65 | 406 |
| 66 | 0 |
| 67 | 0 |
[0,0,0,0,1,0,0,2,2,0,0,4,2,4,0,0,9,8,8,9,0,0,19, 22,28,22,19,0,0,41,68,142,142,68,41,0,0,88,212, 540,1146,540,212,88,0,0,189,652,2585,7456,7456, 2585,652,189,0,0,406,2017,11343,55663,78195,55663, 11343,2017,406,0,0] |