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 | 2 |
| 6 | 4 |
| 7 | 2 |
| 8 | 2 |
| 9 | 2 |
| 10 | 0 |
| 11 | 7 |
| 12 | 4 |
| 13 | 0 |
| 14 | 14 |
| 15 | 7 |
| 16 | 18 |
| 17 | 4 |
| 18 | 28 |
| 19 | 16 |
| 20 | 30 |
| 21 | 44 |
| 22 | 65 |
| 23 | 50 |
| 24 | 83 |
| 25 | 100 |
| 26 | 174 |
| 27 | 168 |
| 28 | 211 |
| 29 | 256 |
| 30 | 283 |
| 31 | 318 |
| 32 | 450 |
| 33 | 456 |
| 34 | 628 |
| 35 | 690 |
| 36 | 872 |
| 37 | 986 |
| 38 | 1164 |
| 39 | 1361 |
| 40 | 1633 |
| 41 | 1832 |
| 42 | 2118 |
| 43 | 2701 |
| 44 | 2950 |
| 45 | 3540 |
| 46 | 3966 |
| 47 | 4775 |
| 48 | 5280 |
| 49 | 6346 |
| 50 | 7150 |
| 51 | 8686 |
| 52 | 9516 |
| 53 | 11096 |
| 54 | 13140 |
| 55 | 15274 |
[0,0,0,0,2,4,2,2,2,0,7,4,0,14,7,18,4,28,16,30,44, 65,50,83,100,174,168,211,256,283,318,450,456,628, 690,872,986,1164,1361,1633,1832,2118,2701,2950, 3540,3966,4775,5280,6346,7150,8686,9516,11096, 13140,15274] |