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 | 0 |
| 3 | 2 |
| 4 | 1 |
| 5 | 1 |
| 6 | 3 |
| 7 | 2 |
| 8 | 6 |
| 9 | 6 |
| 10 | 5 |
| 11 | 11 |
| 12 | 13 |
| 13 | 17 |
| 14 | 20 |
| 15 | 23 |
| 16 | 38 |
| 17 | 41 |
| 18 | 53 |
| 19 | 66 |
| 20 | 76 |
| 21 | 110 |
| 22 | 124 |
| 23 | 148 |
| 24 | 195 |
| 25 | 221 |
| 26 | 293 |
| 27 | 343 |
| 28 | 401 |
| 29 | 512 |
| 30 | 595 |
| 31 | 739 |
| 32 | 878 |
| 33 | 1020 |
| 34 | 1273 |
| 35 | 1480 |
| 36 | 1792 |
| 37 | 2119 |
| 38 | 2460 |
| 39 | 3011 |
| 40 | 3500 |
| 41 | 4139 |
| 42 | 4907 |
| 43 | 5669 |
| 44 | 6816 |
| 45 | 7916 |
| 46 | 9245 |
| 47 | 10892 |
| 48 | 12583 |
| 49 | 14881 |
| 50 | 17247 |
| 51 | 19981 |
| 52 | 23404 |
| 53 | 26937 |
[1,0,0,2,1,1,3,2,6,6,5,11,13,17,20,23,38,41,53,66, 76,110,124,148,195,221,293,343,401,512,595,739, 878,1020,1273,1480,1792,2119,2460,3011,3500,4139, 4907,5669,6816,7916,9245,10892,12583,14881,17247, 19981,23404,26937] |