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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 0 |
| 6 | 1 |
| 7 | 2 |
| 8 | 4 |
| 9 | 0 |
| 10 | 1 |
| 11 | 3 |
| 12 | 9 |
| 13 | 20 |
| 14 | 0 |
| 15 | 1 |
| 16 | 4 |
| 17 | 15 |
| 18 | 48 |
| 19 | 113 |
| 20 | 0 |
| 21 | 1 |
| 22 | 5 |
| 23 | 22 |
| 24 | 85 |
| 25 | 282 |
| 26 | 688 |
| 27 | 0 |
| 28 | 1 |
| 29 | 6 |
| 30 | 30 |
| 31 | 132 |
| 32 | 519 |
| 33 | 1762 |
| 34 | 4404 |
| 35 | 0 |
| 36 | 1 |
| 37 | 7 |
| 38 | 39 |
| 39 | 190 |
| 40 | 837 |
| 41 | 3330 |
| 42 | 11488 |
| 43 | 29219 |
| 44 | 0 |
| 45 | 1 |
| 46 | 8 |
| 47 | 49 |
| 48 | 260 |
| 49 | 1250 |
| 50 | 5516 |
| 51 | 22135 |
| 52 | 77270 |
| 53 | 199140 |
| 54 | 0 |
| 55 | 1 |
| 56 | 9 |
| 57 | 60 |
| 58 | 343 |
| 59 | 1773 |
| 60 | 8461 |
| 61 | 37404 |
| 62 | 151089 |
| 63 | 532239 |
| 64 | 1385904 |
| 65 | 0 |
[1,1,0,1,1,0,1,2,4,0,1,3,9,20,0,1,4,15,48,113,0,1, 5,22,85,282,688,0,1,6,30,132,519,1762,4404,0,1,7, 39,190,837,3330,11488,29219,0,1,8,49,260,1250, 5516,22135,77270,199140,0,1,9,60,343,1773,8461, 37404,151089,532239,1385904,0] |