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 | 1 |
| 3 | 2 |
| 4 | 2 |
| 5 | 3 |
| 6 | 4 |
| 7 | 5 |
| 8 | 7 |
| 9 | 9 |
| 10 | 12 |
| 11 | 16 |
| 12 | 21 |
| 13 | 28 |
| 14 | 37 |
| 15 | 49 |
| 16 | 65 |
| 17 | 86 |
| 18 | 114 |
| 19 | 151 |
| 20 | 200 |
| 21 | 265 |
| 22 | 351 |
| 23 | 465 |
| 24 | 616 |
| 25 | 816 |
| 26 | 1081 |
| 27 | 1432 |
| 28 | 1897 |
| 29 | 2513 |
| 30 | 3329 |
| 31 | 4410 |
| 32 | 5842 |
| 33 | 7739 |
| 34 | 10252 |
| 35 | 13581 |
| 36 | 17991 |
| 37 | 23833 |
| 38 | 31572 |
| 39 | 41824 |
| 40 | 55405 |
| 41 | 73396 |
| 42 | 97229 |
| 43 | 128801 |
| 44 | 170625 |
| 45 | 226030 |
| 46 | 299426 |
| 47 | 396655 |
| 48 | 525456 |
[0,0,1,2,2,3,4,5,7,9,12,16,21,28,37,49,65,86,114, 151,200,265,351,465,616,816,1081,1432,1897,2513, 3329,4410,5842,7739,10252,13581,17991,23833,31572, 41824,55405,73396,97229,128801,170625,226030, 299426,396655,525456] |