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 | 5 |
| 9 | 6 |
| 10 | 9 |
| 11 | 13 |
| 12 | 18 |
| 13 | 24 |
| 14 | 31 |
| 15 | 42 |
| 16 | 58 |
| 17 | 80 |
| 18 | 109 |
| 19 | 146 |
| 20 | 197 |
| 21 | 268 |
| 22 | 366 |
| 23 | 499 |
| 24 | 676 |
| 25 | 916 |
| 26 | 1243 |
| 27 | 1690 |
| 28 | 2299 |
| 29 | 3122 |
| 30 | 4237 |
| 31 | 5751 |
| 32 | 7811 |
| 33 | 10614 |
| 34 | 14418 |
| 35 | 19580 |
| 36 | 26587 |
| 37 | 36106 |
| 38 | 49043 |
| 39 | 66614 |
| 40 | 90473 |
| 41 | 122869 |
| 42 | 166866 |
| 43 | 226632 |
| 44 | 307810 |
| 45 | 418060 |
| 46 | 567784 |
| 47 | 771122 |
| 48 | 1047296 |
| 49 | 1422396 |
[1,1,1,1,1,2,3,4,5,6,9,13,18,24,31,42,58,80,109, 146,197,268,366,499,676,916,1243,1690,2299,3122, 4237,5751,7811,10614,14418,19580,26587,36106, 49043,66614,90473,122869,166866,226632,307810, 418060,567784,771122,1047296,1422396] |