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 | 1 |
| 2 | 0 |
| 3 | 3 |
| 4 | 0 |
| 5 | 1 |
| 6 | 0 |
| 7 | 12 |
| 8 | 8 |
| 9 | 0 |
| 10 | 9 |
| 11 | 6 |
| 12 | 0 |
| 13 | 0 |
| 14 | 1 |
| 15 | 0 |
| 16 | 96 |
| 17 | 0 |
| 18 | 204 |
| 19 | 0 |
| 20 | 160 |
| 21 | 0 |
| 22 | 67 |
| 23 | 0 |
| 24 | 36 |
| 25 | 0 |
| 26 | 12 |
| 27 | 0 |
| 28 | 0 |
| 29 | 0 |
| 30 | 1 |
| 31 | 0 |
| 32 | 2400 |
| 33 | 1680 |
| 34 | 480 |
| 35 | 1824 |
| 36 | 1200 |
| 37 | 1300 |
| 38 | 2300 |
| 39 | 1600 |
| 40 | 100 |
| 41 | 400 |
| 42 | 400 |
| 43 | 225 |
| 44 | 300 |
| 45 | 70 |
| 46 | 0 |
| 47 | 100 |
| 48 | 0 |
| 49 | 0 |
| 50 | 20 |
| 51 | 0 |
| 52 | 0 |
| 53 | 0 |
| 54 | 0 |
| 55 | 1 |
| 56 | 0 |
| 57 | 34560 |
| 58 | 0 |
| 59 | 87840 |
| 60 | 0 |
| 61 | 153840 |
| 62 | 0 |
| 63 | 77616 |
| 64 | 0 |
| 65 | 61020 |
| 66 | 0 |
| 67 | 56048 |
| 68 | 0 |
| 69 | 28500 |
| 70 | 0 |
| 71 | 9900 |
| 72 | 0 |
| 73 | 4075 |
| 74 | 0 |
| 75 | 3225 |
| 76 | 0 |
| 77 | 1350 |
| 78 | 0 |
| 79 | 170 |
| 80 | 0 |
| 81 | 225 |
| 82 | 0 |
| 83 | 0 |
| 84 | 0 |
| 85 | 30 |
| 86 | 0 |
| 87 | 0 |
| 88 | 0 |
| 89 | 0 |
| 90 | 0 |
| 91 | 1 |
| 92 | 0 |
| 93 | 2540160 |
| 94 | 2338560 |
| 95 | 1058400 |
| 96 | 1522080 |
| 97 | 1582560 |
| 98 | 1225440 |
| 99 | 1905120 |
| 100 | 3605616 |
| 101 | 2342592 |
| 102 | 1605240 |
[1,0,3,0,1,0,12,8,0,9,6,0,0,1,0,96,0,204,0,160,0, 67,0,36,0,12,0,0,0,1,0,2400,1680,480,1824,1200, 1300,2300,1600,100,400,400,225,300,70,0,100,0,0, 20,0,0,0,0,1,0,34560,0,87840,0,153840,0,77616,0, 61020,0,56048,0,28500,0,9900,0,4075,0,3225,0,1350, 0,170,0,225,0,0,0,30,0,0,0,0,0,1,0,2540160, 2338560,1058400,1522080,1582560,1225440,1905120, 3605616,2342592,1605240] |