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) |
|---|---|
| 2 | 1 |
| 3 | 0 |
| 4 | 1 |
| 5 | 0 |
| 6 | 1 |
| 7 | 2 |
| 8 | 0 |
| 9 | 0 |
| 10 | 2 |
| 11 | 4 |
| 12 | 0 |
| 13 | 0 |
| 14 | 1 |
| 15 | 5 |
| 16 | 9 |
| 17 | 0 |
| 18 | 0 |
| 19 | 0 |
| 20 | 3 |
| 21 | 12 |
| 22 | 21 |
| 23 | 0 |
| 24 | 0 |
| 25 | 0 |
| 26 | 1 |
| 27 | 9 |
| 28 | 30 |
| 29 | 51 |
| 30 | 0 |
| 31 | 0 |
| 32 | 0 |
| 33 | 0 |
| 34 | 4 |
| 35 | 25 |
| 36 | 76 |
| 37 | 127 |
| 38 | 0 |
| 39 | 0 |
| 40 | 0 |
| 41 | 0 |
| 42 | 1 |
| 43 | 14 |
| 44 | 69 |
| 45 | 196 |
| 46 | 323 |
| 47 | 0 |
| 48 | 0 |
| 49 | 0 |
| 50 | 0 |
| 51 | 0 |
| 52 | 5 |
| 53 | 44 |
| 54 | 189 |
| 55 | 512 |
| 56 | 835 |
| 57 | 0 |
| 58 | 0 |
| 59 | 0 |
| 60 | 0 |
| 61 | 0 |
| 62 | 1 |
| 63 | 20 |
| 64 | 133 |
| 65 | 518 |
| 66 | 1353 |
| 67 | 2188 |
| 68 | 0 |
| 69 | 0 |
| 70 | 0 |
| 71 | 0 |
| 72 | 0 |
| 73 | 0 |
| 74 | 6 |
| 75 | 70 |
| 76 | 392 |
| 77 | 1422 |
| 78 | 3610 |
| 79 | 5798 |
| 80 | 0 |
| 81 | 0 |
| 82 | 0 |
| 83 | 0 |
[1,0,1,0,1,2,0,0,2,4,0,0,1,5,9,0,0,0,3,12,21,0,0, 0,1,9,30,51,0,0,0,0,4,25,76,127,0,0,0,0,1,14,69, 196,323,0,0,0,0,0,5,44,189,512,835,0,0,0,0,0,1,20, 133,518,1353,2188,0,0,0,0,0,0,6,70,392,1422,3610, 5798,0,0,0,0] |