| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| 10 | 1 |
| 11 | 0 |
| 12 | 1 |
| 13 | 0 |
| 14 | 1 |
| 15 | 0 |
| 16 | 1 |
| 17 | 0 |
| 18 | 4 |
| 19 | 0 |
| 20 | 4 |
| 21 | 0 |
| 22 | 4 |
| 23 | 0 |
| 24 | 4 |
| 25 | 0 |
| 26 | 10 |
| 27 | 0 |
| 28 | 11 |
| 29 | 0 |
| 30 | 11 |
| 31 | 0 |
| 32 | 11 |
| 33 | 0 |
| 34 | 22 |
| 35 | 0 |
| 36 | 25 |
| 37 | 0 |
| 38 | 26 |
| 39 | 0 |
| 40 | 26 |
| 41 | 0 |
| 42 | 44 |
| 43 | 0 |
| 44 | 51 |
| 45 | 0 |
| 46 | 54 |
| 47 | 0 |
| 48 | 55 |
| 49 | 0 |
| 50 | 84 |
| 51 | 0 |
| 52 | 98 |
| 53 | 0 |
| 54 | 105 |
| 55 | 0 |
| 56 | 108 |
| 57 | 0 |
| 58 | 153 |
| 59 | 0 |
| 60 | 178 |
| 61 | 0 |
| 62 | 193 |
| 63 | 0 |
| 64 | 200 |
| 65 | 0 |
| 66 | 269 |
| 67 | 0 |
| 68 | 313 |
| 69 | 0 |
| 70 | 341 |
| 71 | 0 |
| 72 | 356 |
| 73 | 0 |
| 74 | 459 |
| 75 | 0 |
| 76 | 531 |
| 77 | 0 |
| 78 | 582 |
| 79 | 0 |
| 80 | 611 |
| 81 | 0 |
[0,0,0,0,0,0,0,0,0,1,0,1,0,1,0,1,0,4,0,4,0,4,0,4, 0,10,0,11,0,11,0,11,0,22,0,25,0,26,0,26,0,44,0,51, 0,54,0,55,0,84,0,98,0,105,0,108,0,153,0,178,0,193, 0,200,0,269,0,313,0,341,0,356,0,459,0,531,0,582,0, 611,0] |