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 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 1 |
| 6 | 0 |
| 7 | 3 |
| 8 | 3 |
| 9 | 0 |
| 10 | 0 |
| 11 | 3 |
| 12 | 6 |
| 13 | 3 |
| 14 | 0 |
| 15 | 0 |
| 16 | 0 |
| 17 | 9 |
| 18 | 9 |
| 19 | 0 |
| 20 | 0 |
| 21 | 0 |
| 22 | 0 |
| 23 | 9 |
| 24 | 18 |
| 25 | 9 |
| 26 | 0 |
| 27 | 0 |
| 28 | 0 |
| 29 | 0 |
| 30 | 0 |
| 31 | 27 |
| 32 | 27 |
| 33 | 0 |
| 34 | 0 |
| 35 | 0 |
| 36 | 0 |
| 37 | 0 |
| 38 | 0 |
| 39 | 27 |
| 40 | 54 |
| 41 | 27 |
| 42 | 0 |
| 43 | 0 |
| 44 | 0 |
| 45 | 0 |
| 46 | 0 |
| 47 | 0 |
| 48 | 0 |
| 49 | 81 |
| 50 | 81 |
| 51 | 0 |
| 52 | 0 |
| 53 | 0 |
| 54 | 0 |
| 55 | 0 |
| 56 | 0 |
| 57 | 0 |
| 58 | 0 |
| 59 | 81 |
| 60 | 162 |
| 61 | 81 |
| 62 | 0 |
| 63 | 0 |
| 64 | 0 |
| 65 | 0 |
[1,1,1,1,2,1,0,3,3,0,0,3,6,3,0,0,0,9,9,0,0,0,0,9, 18,9,0,0,0,0,0,27,27,0,0,0,0,0,0,27,54,27,0,0,0,0, 0,0,0,81,81,0,0,0,0,0,0,0,0,81,162,81,0,0,0,0] |