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) |
|---|---|
| 5 | 1 |
| 6 | 0 |
| 7 | 0 |
| 8 | 5 |
| 9 | 0 |
| 10 | 5 |
| 11 | 10 |
| 12 | 5 |
| 13 | 25 |
| 14 | 15 |
| 15 | 30 |
| 16 | 55 |
| 17 | 45 |
| 18 | 85 |
| 19 | 105 |
| 20 | 126 |
| 21 | 180 |
| 22 | 220 |
| 23 | 260 |
| 24 | 360 |
| 25 | 415 |
| 26 | 510 |
| 27 | 650 |
| 28 | 745 |
| 29 | 915 |
| 30 | 1101 |
| 31 | 1270 |
| 32 | 1525 |
| 33 | 1800 |
| 34 | 2045 |
| 35 | 2440 |
| 36 | 2780 |
| 37 | 3225 |
| 38 | 3660 |
| 39 | 4250 |
| 40 | 4771 |
| 41 | 5465 |
| 42 | 6185 |
| 43 | 6930 |
| 44 | 7840 |
| 45 | 8816 |
| 46 | 9790 |
| 47 | 11015 |
| 48 | 12240 |
| 49 | 13505 |
| 50 | 15146 |
| 51 | 16595 |
| 52 | 18385 |
| 53 | 20240 |
| 54 | 22325 |
| 55 | 24255 |
[1,0,0,5,0,5,10,5,25,15,30,55,45,85,105,126,180, 220,260,360,415,510,650,745,915,1101,1270,1525, 1800,2045,2440,2780,3225,3660,4250,4771,5465,6185, 6930,7840,8816,9790,11015,12240,13505,15146,16595, 18385,20240,22325,24255] |