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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 4 |
| 4 | 0 |
| 5 | 6 |
| 6 | 7 |
| 7 | 0 |
| 8 | 0 |
| 9 | 10 |
| 10 | 11 |
| 11 | 0 |
| 12 | 13 |
| 13 | 0 |
| 14 | 0 |
| 15 | 16 |
| 16 | 0 |
| 17 | 18 |
| 18 | 19 |
| 19 | 0 |
| 20 | 21 |
| 21 | 0 |
| 22 | 0 |
| 23 | 24 |
| 24 | 25 |
| 25 | 0 |
| 26 | 0 |
| 27 | 28 |
| 28 | 0 |
| 29 | 30 |
| 30 | 31 |
| 31 | 0 |
| 32 | 0 |
| 33 | 34 |
| 34 | 35 |
| 35 | 0 |
| 36 | 37 |
| 37 | 0 |
| 38 | 0 |
| 39 | 40 |
| 40 | 41 |
| 41 | 0 |
| 42 | 0 |
| 43 | 44 |
| 44 | 0 |
| 45 | 46 |
| 46 | 47 |
| 47 | 0 |
| 48 | 49 |
| 49 | 0 |
| 50 | 0 |
| 51 | 52 |
| 52 | 0 |
| 53 | 54 |
| 54 | 55 |
| 55 | 0 |
| 56 | 0 |
| 57 | 58 |
| 58 | 59 |
| 59 | 0 |
| 60 | 61 |
| 61 | 0 |
| 62 | 0 |
| 63 | 64 |
| 64 | 0 |
| 65 | 66 |
| 66 | 67 |
| 67 | 0 |
| 68 | 69 |
| 69 | 0 |
| 70 | 0 |
| 71 | 72 |
| 72 | 73 |
| 73 | 0 |
| 74 | 0 |
| 75 | 76 |
| 76 | 0 |
| 77 | 78 |
| 78 | 79 |
| 79 | 0 |
| 80 | 81 |
| 81 | 0 |
| 82 | 0 |
| 83 | 84 |
| 84 | 0 |
| 85 | 86 |
[1,0,0,4,0,6,7,0,0,10,11,0,13,0,0,16,0,18,19,0,21, 0,0,24,25,0,0,28,0,30,31,0,0,34,35,0,37,0,0,40,41, 0,0,44,0,46,47,0,49,0,0,52,0,54,55,0,0,58,59,0,61, 0,0,64,0,66,67,0,69,0,0,72,73,0,0,76,0,78,79,0,81, 0,0,84,0,86] |