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 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 0 |
| 6 | 2 |
| 7 | 0 |
| 8 | 3 |
| 9 | 2 |
| 10 | 5 |
| 11 | 3 |
| 12 | 9 |
| 13 | 5 |
| 14 | 11 |
| 15 | 11 |
| 16 | 18 |
| 17 | 15 |
| 18 | 29 |
| 19 | 26 |
| 20 | 41 |
| 21 | 42 |
| 22 | 60 |
| 23 | 61 |
| 24 | 91 |
| 25 | 91 |
| 26 | 125 |
| 27 | 137 |
| 28 | 182 |
| 29 | 195 |
| 30 | 260 |
| 31 | 282 |
| 32 | 364 |
| 33 | 406 |
| 34 | 509 |
| 35 | 569 |
| 36 | 715 |
| 37 | 795 |
| 38 | 980 |
| 39 | 1111 |
| 40 | 1351 |
| 41 | 1523 |
| 42 | 1847 |
| 43 | 2087 |
| 44 | 2505 |
| 45 | 2847 |
| 46 | 3384 |
| 47 | 3844 |
| 48 | 4563 |
| 49 | 5174 |
| 50 | 6098 |
| 51 | 6941 |
| 52 | 8134 |
| 53 | 9243 |
| 54 | 10807 |
| 55 | 12273 |
[0,0,0,0,1,0,2,0,3,2,5,3,9,5,11,11,18,15,29,26,41, 42,60,61,91,91,125,137,182,195,260,282,364,406, 509,569,715,795,980,1111,1351,1523,1847,2087,2505, 2847,3384,3844,4563,5174,6098,6941,8134,9243, 10807,12273] |