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 | 1 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 3 |
| 7 | 3 |
| 8 | 4 |
| 9 | 5 |
| 10 | 7 |
| 11 | 8 |
| 12 | 11 |
| 13 | 13 |
| 14 | 17 |
| 15 | 20 |
| 16 | 25 |
| 17 | 29 |
| 18 | 36 |
| 19 | 42 |
| 20 | 51 |
| 21 | 60 |
| 22 | 72 |
| 23 | 84 |
| 24 | 100 |
| 25 | 117 |
| 26 | 137 |
| 27 | 160 |
| 28 | 187 |
| 29 | 216 |
| 30 | 251 |
| 31 | 290 |
| 32 | 334 |
| 33 | 385 |
| 34 | 442 |
| 35 | 507 |
| 36 | 581 |
| 37 | 664 |
| 38 | 757 |
| 39 | 864 |
| 40 | 982 |
| 41 | 1116 |
| 42 | 1266 |
| 43 | 1435 |
| 44 | 1622 |
| 45 | 1835 |
| 46 | 2069 |
| 47 | 2333 |
| 48 | 2626 |
| 49 | 2954 |
| 50 | 3316 |
| 51 | 3724 |
| 52 | 4172 |
| 53 | 4673 |
| 54 | 5227 |
| 55 | 5844 |
[0,1,0,1,1,2,3,3,4,5,7,8,11,13,17,20,25,29,36,42, 51,60,72,84,100,117,137,160,187,216,251,290,334, 385,442,507,581,664,757,864,982,1116,1266,1435, 1622,1835,2069,2333,2626,2954,3316,3724,4172,4673, 5227,5844] |