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 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 2 |
| 6 | 3 |
| 7 | 6 |
| 8 | 8 |
| 9 | 13 |
| 10 | 18 |
| 11 | 27 |
| 12 | 35 |
| 13 | 52 |
| 14 | 67 |
| 15 | 93 |
| 16 | 121 |
| 17 | 164 |
| 18 | 209 |
| 19 | 279 |
| 20 | 353 |
| 21 | 461 |
| 22 | 582 |
| 23 | 748 |
| 24 | 935 |
| 25 | 1191 |
| 26 | 1480 |
| 27 | 1861 |
| 28 | 2302 |
| 29 | 2870 |
| 30 | 3526 |
| 31 | 4365 |
| 32 | 5335 |
| 33 | 6554 |
| 34 | 7976 |
| 35 | 9736 |
| 36 | 11789 |
| 37 | 14316 |
| 38 | 17259 |
| 39 | 20844 |
| 40 | 25032 |
| 41 | 30092 |
| 42 | 35992 |
| 43 | 43086 |
| 44 | 51347 |
| 45 | 61215 |
| 46 | 72710 |
| 47 | 86361 |
| 48 | 102235 |
[0,0,0,0,1,2,3,6,8,13,18,27,35,52,67,93,121,164, 209,279,353,461,582,748,935,1191,1480,1861,2302, 2870,3526,4365,5335,6554,7976,9736,11789,14316, 17259,20844,25032,30092,35992,43086,51347,61215, 72710,86361,102235] |