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 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 3 |
| 5 | 2 |
| 6 | 4 |
| 7 | 4 |
| 8 | 7 |
| 9 | 7 |
| 10 | 11 |
| 11 | 14 |
| 12 | 19 |
| 13 | 21 |
| 14 | 30 |
| 15 | 38 |
| 16 | 51 |
| 17 | 59 |
| 18 | 81 |
| 19 | 98 |
| 20 | 124 |
| 21 | 156 |
| 22 | 199 |
| 23 | 239 |
| 24 | 311 |
| 25 | 365 |
| 26 | 468 |
| 27 | 572 |
| 28 | 711 |
| 29 | 844 |
| 30 | 1070 |
| 31 | 1271 |
| 32 | 1572 |
| 33 | 1884 |
| 34 | 2318 |
| 35 | 2749 |
| 36 | 3387 |
| 37 | 4000 |
| 38 | 4879 |
| 39 | 5796 |
| 40 | 6977 |
| 41 | 8266 |
| 42 | 9986 |
| 43 | 11769 |
| 44 | 14071 |
| 45 | 16632 |
| 46 | 19800 |
| 47 | 23300 |
| 48 | 27700 |
| 49 | 32471 |
| 50 | 38447 |
[1,0,1,1,3,2,4,4,7,7,11,14,19,21,30,38,51,59,81, 98,124,156,199,239,311,365,468,572,711,844,1070, 1271,1572,1884,2318,2749,3387,4000,4879,5796,6977, 8266,9986,11769,14071,16632,19800,23300,27700, 32471,38447] |