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 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 0 |
| 6 | 1 |
| 7 | 2 |
| 8 | 2 |
| 9 | 0 |
| 10 | 1 |
| 11 | 3 |
| 12 | 7 |
| 13 | 5 |
| 14 | 0 |
| 15 | 1 |
| 16 | 4 |
| 17 | 15 |
| 18 | 31 |
| 19 | 15 |
| 20 | 0 |
| 21 | 1 |
| 22 | 5 |
| 23 | 26 |
| 24 | 95 |
| 25 | 164 |
| 26 | 52 |
| 27 | 0 |
| 28 | 1 |
| 29 | 6 |
| 30 | 40 |
| 31 | 214 |
| 32 | 717 |
| 33 | 999 |
| 34 | 203 |
| 35 | 0 |
| 36 | 1 |
| 37 | 7 |
| 38 | 57 |
| 39 | 405 |
| 40 | 2096 |
| 41 | 6221 |
| 42 | 6841 |
| 43 | 877 |
| 44 | 0 |
| 45 | 1 |
| 46 | 8 |
| 47 | 77 |
| 48 | 685 |
| 49 | 4875 |
| 50 | 23578 |
| 51 | 60619 |
| 52 | 51790 |
| 53 | 4140 |
| 54 | 0 |
| 55 | 1 |
| 56 | 9 |
| 57 | 100 |
| 58 | 1071 |
| 59 | 9780 |
| 60 | 67354 |
| 61 | 297692 |
| 62 | 652595 |
| 63 | 428131 |
| 64 | 21147 |
| 65 | 0 |
[1,1,0,1,1,0,1,2,2,0,1,3,7,5,0,1,4,15,31,15,0,1,5, 26,95,164,52,0,1,6,40,214,717,999,203,0,1,7,57, 405,2096,6221,6841,877,0,1,8,77,685,4875,23578, 60619,51790,4140,0,1,9,100,1071,9780,67354,297692, 652595,428131,21147,0] |