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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 1 |
| 7 | 1 |
| 8 | 2 |
| 9 | 2 |
| 10 | 3 |
| 11 | 3 |
| 12 | 4 |
| 13 | 4 |
| 14 | 5 |
| 15 | 5 |
| 16 | 6 |
| 17 | 6 |
| 18 | 7 |
| 19 | 7 |
| 20 | 9 |
| 21 | 9 |
| 22 | 11 |
| 23 | 12 |
| 24 | 15 |
| 25 | 16 |
| 26 | 20 |
| 27 | 22 |
| 28 | 27 |
| 29 | 30 |
| 30 | 36 |
| 31 | 40 |
| 32 | 48 |
| 33 | 53 |
| 34 | 62 |
| 35 | 69 |
| 36 | 80 |
| 37 | 88 |
| 38 | 101 |
| 39 | 111 |
| 40 | 126 |
| 41 | 138 |
| 42 | 156 |
| 43 | 170 |
| 44 | 191 |
| 45 | 208 |
| 46 | 232 |
| 47 | 253 |
| 48 | 282 |
| 49 | 306 |
| 50 | 340 |
| 51 | 370 |
| 52 | 410 |
| 53 | 446 |
| 54 | 494 |
| 55 | 537 |
| 56 | 594 |
| 57 | 647 |
| 58 | 714 |
| 59 | 778 |
| 60 | 859 |
| 61 | 935 |
| 62 | 1031 |
| 63 | 1124 |
[1,0,0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,9,9,11, 12,15,16,20,22,27,30,36,40,48,53,62,69,80,88,101, 111,126,138,156,170,191,208,232,253,282,306,340, 370,410,446,494,537,594,647,714,778,859,935,1031, 1124] |