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 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| 10 | 0 |
| 11 | 0 |
| 12 | 0 |
| 13 | 0 |
| 14 | 0 |
| 15 | 0 |
| 16 | 0 |
| 17 | 1 |
| 18 | 1 |
| 19 | 3 |
| 20 | 4 |
| 21 | 9 |
| 22 | 12 |
| 23 | 24 |
| 24 | 34 |
| 25 | 59 |
| 26 | 86 |
| 27 | 141 |
| 28 | 205 |
| 29 | 326 |
| 30 | 473 |
| 31 | 728 |
| 32 | 1058 |
| 33 | 1595 |
| 34 | 2308 |
| 35 | 3431 |
| 36 | 4949 |
| 37 | 7265 |
| 38 | 10448 |
| 39 | 15202 |
| 40 | 21785 |
| 41 | 31486 |
| 42 | 44994 |
| 43 | 64663 |
| 44 | 92196 |
| 45 | 131956 |
| 46 | 187758 |
| 47 | 267927 |
| 48 | 380704 |
| 49 | 542085 |
| 50 | 769649 |
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,3,4,9,12,24, 34,59,86,141,205,326,473,728,1058,1595,2308,3431, 4949,7265,10448,15202,21785,31486,44994,64663, 92196,131956,187758,267927,380704,542085,769649] |