| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 1 |
| 6 | 0 |
| 7 | 0 |
| 8 | 2 |
| 9 | 2 |
| 10 | 0 |
| 11 | 0 |
| 12 | 4 |
| 13 | 2 |
| 14 | 4 |
| 15 | 0 |
| 16 | 0 |
| 17 | 9 |
| 18 | 10 |
| 19 | 10 |
| 20 | 9 |
| 21 | 0 |
| 22 | 0 |
| 23 | 19 |
| 24 | 30 |
| 25 | 64 |
| 26 | 30 |
| 27 | 19 |
| 28 | 0 |
| 29 | 0 |
| 30 | 41 |
| 31 | 104 |
| 32 | 316 |
| 33 | 316 |
| 34 | 104 |
| 35 | 41 |
| 36 | 0 |
| 37 | 0 |
| 38 | 88 |
| 39 | 340 |
| 40 | 1789 |
| 41 | 2998 |
| 42 | 1789 |
| 43 | 340 |
| 44 | 88 |
| 45 | 0 |
| 46 | 0 |
| 47 | 189 |
| 48 | 1144 |
| 49 | 9738 |
| 50 | 28089 |
| 51 | 28089 |
| 52 | 9738 |
| 53 | 1144 |
| 54 | 189 |
| 55 | 0 |
| 56 | 0 |
| 57 | 406 |
| 58 | 3795 |
| 59 | 54293 |
| 60 | 268615 |
| 61 | 456649 |
| 62 | 268615 |
| 63 | 54293 |
| 64 | 3795 |
[0,0,0,0,1,0,0,2,2,0,0,4,2,4,0,0,9,10,10,9,0,0,19, 30,64,30,19,0,0,41,104,316,316,104,41,0,0,88,340, 1789,2998,1789,340,88,0,0,189,1144,9738,28089, 28089,9738,1144,189,0,0,406,3795,54293,268615, 456649,268615,54293,3795] |