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 | 0 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | 4 |
| 10 | 6 |
| 11 | 6 |
| 12 | 6 |
| 13 | 13 |
| 14 | 20 |
| 15 | 23 |
| 16 | 23 |
| 17 | 37 |
| 18 | 57 |
| 19 | 68 |
| 20 | 72 |
| 21 | 98 |
| 22 | 143 |
| 23 | 177 |
| 24 | 192 |
| 25 | 242 |
| 26 | 336 |
| 27 | 420 |
| 28 | 468 |
| 29 | 562 |
| 30 | 746 |
| 31 | 934 |
| 32 | 1058 |
| 33 | 1240 |
| 34 | 1586 |
| 35 | 1976 |
| 36 | 2268 |
| 37 | 2619 |
| 38 | 3250 |
| 39 | 4016 |
| 40 | 4646 |
| 41 | 5327 |
| 42 | 6457 |
| 43 | 7896 |
| 44 | 9183 |
| 45 | 10488 |
| 46 | 12482 |
| 47 | 15099 |
| 48 | 17596 |
| 49 | 20064 |
| 50 | 23551 |
| 51 | 28186 |
| 52 | 32858 |
[0,0,0,0,0,1,1,1,1,4,6,6,6,13,20,23,23,37,57,68, 72,98,143,177,192,242,336,420,468,562,746,934, 1058,1240,1586,1976,2268,2619,3250,4016,4646,5327, 6457,7896,9183,10488,12482,15099,17596,20064, 23551,28186,32858] |