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 | 3 |
| 4 | 2 |
| 5 | 4 |
| 6 | 7 |
| 7 | 7 |
| 8 | 8 |
| 9 | 13 |
| 10 | 20 |
| 11 | 19 |
| 12 | 27 |
| 13 | 30 |
| 14 | 42 |
| 15 | 60 |
| 16 | 63 |
| 17 | 75 |
| 18 | 99 |
| 19 | 112 |
| 20 | 141 |
| 21 | 191 |
| 22 | 205 |
| 23 | 248 |
| 24 | 296 |
| 25 | 357 |
| 26 | 408 |
| 27 | 513 |
| 28 | 617 |
| 29 | 696 |
| 30 | 831 |
| 31 | 969 |
| 32 | 1117 |
| 33 | 1337 |
| 34 | 1523 |
| 35 | 1797 |
| 36 | 2171 |
| 37 | 2420 |
| 38 | 2805 |
| 39 | 3265 |
| 40 | 3772 |
| 41 | 4289 |
| 42 | 5013 |
| 43 | 5661 |
| 44 | 6579 |
| 45 | 7679 |
| 46 | 8615 |
| 47 | 9807 |
| 48 | 11335 |
| 49 | 12799 |
| 50 | 14581 |
[1,1,1,3,2,4,7,7,8,13,20,19,27,30,42,60,63,75,99, 112,141,191,205,248,296,357,408,513,617,696,831, 969,1117,1337,1523,1797,2171,2420,2805,3265,3772, 4289,5013,5661,6579,7679,8615,9807,11335,12799, 14581] |