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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 1 |
| 6 | 0 |
| 7 | 0 |
| 8 | 1 |
| 9 | 4 |
| 10 | 1 |
| 11 | 0 |
| 12 | 1 |
| 13 | 9 |
| 14 | 9 |
| 15 | 1 |
| 16 | 1 |
| 17 | 16 |
| 18 | 36 |
| 19 | 16 |
| 20 | 2 |
| 21 | 25 |
| 22 | 100 |
| 23 | 100 |
| 24 | 26 |
| 25 | 37 |
| 26 | 225 |
| 27 | 400 |
| 28 | 226 |
| 29 | 85 |
| 30 | 442 |
| 31 | 1225 |
| 32 | 1226 |
| 33 | 505 |
| 34 | 833 |
| 35 | 3137 |
| 36 | 4901 |
| 37 | 3217 |
| 38 | 2080 |
| 39 | 7120 |
| 40 | 15878 |
| 41 | 15976 |
| 42 | 9081 |
| 43 | 15696 |
| 44 | 44182 |
| 45 | 63626 |
| 46 | 47125 |
| 47 | 41625 |
| 48 | 110926 |
| 49 | 213688 |
| 50 | 217801 |
| 51 | 157300 |
| 52 | 272251 |
| 53 | 630458 |
[1,0,0,0,1,1,0,0,1,4,1,0,1,9,9,1,1,16,36,16,2,25, 100,100,26,37,225,400,226,85,442,1225,1226,505, 833,3137,4901,3217,2080,7120,15878,15976,9081, 15696,44182,63626,47125,41625,110926,213688, 217801,157300,272251,630458] |