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 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 3 |
| 7 | 4 |
| 8 | 6 |
| 9 | 8 |
| 10 | 11 |
| 11 | 16 |
| 12 | 22 |
| 13 | 31 |
| 14 | 44 |
| 15 | 61 |
| 16 | 86 |
| 17 | 121 |
| 18 | 169 |
| 19 | 238 |
| 20 | 334 |
| 21 | 468 |
| 22 | 658 |
| 23 | 923 |
| 24 | 1295 |
| 25 | 1819 |
| 26 | 2552 |
| 27 | 3582 |
| 28 | 5029 |
| 29 | 7057 |
| 30 | 9906 |
| 31 | 13905 |
| 32 | 19515 |
| 33 | 27393 |
| 34 | 38449 |
| 35 | 53965 |
| 36 | 75748 |
| 37 | 106319 |
| 38 | 149228 |
| 39 | 209460 |
| 40 | 293996 |
| 41 | 412653 |
| 42 | 579204 |
| 43 | 812968 |
| 44 | 1141085 |
| 45 | 1601632 |
| 46 | 2248049 |
[1,1,1,1,1,2,3,4,6,8,11,16,22,31,44,61,86,121,169, 238,334,468,658,923,1295,1819,2552,3582,5029,7057, 9906,13905,19515,27393,38449,53965,75748,106319, 149228,209460,293996,412653,579204,812968,1141085, 1601632,2248049] |