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) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 0 |
| 5 | 4 |
| 6 | 2 |
| 7 | 6 |
| 8 | 4 |
| 9 | 0 |
| 10 | 6 |
| 11 | 10 |
| 12 | 3 |
| 13 | 12 |
| 14 | 10 |
| 15 | 6 |
| 16 | 0 |
| 17 | 16 |
| 18 | 9 |
| 19 | 18 |
| 20 | 4 |
| 21 | 12 |
| 22 | 18 |
| 23 | 22 |
| 24 | 8 |
| 25 | 0 |
| 26 | 22 |
| 27 | 18 |
| 28 | 12 |
| 29 | 28 |
| 30 | 5 |
| 31 | 30 |
| 32 | 16 |
| 33 | 24 |
| 34 | 30 |
| 35 | 10 |
| 36 | 0 |
| 37 | 36 |
| 38 | 34 |
| 39 | 30 |
| 40 | 15 |
| 41 | 40 |
| 42 | 6 |
| 43 | 42 |
| 44 | 28 |
| 45 | 20 |
| 46 | 42 |
| 47 | 46 |
| 48 | 12 |
| 49 | 0 |
| 50 | 25 |
| 51 | 42 |
| 52 | 36 |
| 53 | 52 |
| 54 | 18 |
| 55 | 30 |
| 56 | 7 |
| 57 | 48 |
| 58 | 54 |
| 59 | 58 |
| 60 | 24 |
| 61 | 60 |
| 62 | 58 |
| 63 | 14 |
| 64 | 0 |
| 65 | 40 |
| 66 | 30 |
| 67 | 66 |
| 68 | 52 |
| 69 | 60 |
| 70 | 21 |
| 71 | 70 |
| 72 | 8 |
| 73 | 72 |
| 74 | 70 |
| 75 | 50 |
| 76 | 60 |
| 77 | 28 |
| 78 | 42 |
[0,1,2,0,4,2,6,4,0,6,10,3,12,10,6,0,16,9,18,4,12, 18,22,8,0,22,18,12,28,5,30,16,24,30,10,0,36,34,30, 15,40,6,42,28,20,42,46,12,0,25,42,36,52,18,30,7, 48,54,58,24,60,58,14,0,40,30,66,52,60,21,70,8,72, 70,50,60,28,42] |