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