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 | 1 |
| 3 | 3 |
| 4 | 3 |
| 5 | 2 |
| 6 | 5 |
| 7 | 9 |
| 8 | 8 |
| 9 | 11 |
| 10 | 15 |
| 11 | 24 |
| 12 | 30 |
| 13 | 42 |
| 14 | 51 |
| 15 | 76 |
| 16 | 94 |
| 17 | 126 |
| 18 | 158 |
| 19 | 217 |
| 20 | 298 |
| 21 | 403 |
| 22 | 539 |
| 23 | 731 |
| 24 | 970 |
| 25 | 1305 |
| 26 | 1748 |
| 27 | 2322 |
| 28 | 3179 |
| 29 | 4225 |
| 30 | 5715 |
| 31 | 7596 |
| 32 | 10259 |
| 33 | 13731 |
| 34 | 18357 |
| 35 | 24771 |
| 36 | 33184 |
| 37 | 44448 |
| 38 | 59968 |
| 39 | 80764 |
| 40 | 107973 |
| 41 | 145638 |
| 42 | 195237 |
| 43 | 262446 |
| 44 | 352904 |
| 45 | 474964 |
| 46 | 637081 |
| 47 | 856232 |
| 48 | 1149966 |
| 49 | 1543986 |
| 50 | 2076534 |
| 51 | 2789516 |
[0,1,1,3,3,2,5,9,8,11,15,24,30,42,51,76,94,126, 158,217,298,403,539,731,970,1305,1748,2322,3179, 4225,5715,7596,10259,13731,18357,24771,33184, 44448,59968,80764,107973,145638,195237,262446, 352904,474964,637081,856232,1149966,1543986, 2076534,2789516] |