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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 1 |
| 7 | 2 |
| 8 | 4 |
| 9 | 6 |
| 10 | 3 |
| 11 | 4 |
| 12 | 6 |
| 13 | 8 |
| 14 | 4 |
| 15 | 6 |
| 16 | 8 |
| 17 | 10 |
| 18 | 13 |
| 19 | 16 |
| 20 | 20 |
| 21 | 24 |
| 22 | 17 |
| 23 | 20 |
| 24 | 24 |
| 25 | 28 |
| 26 | 19 |
| 27 | 22 |
| 28 | 25 |
| 29 | 28 |
| 30 | 32 |
| 31 | 36 |
| 32 | 41 |
| 33 | 46 |
| 34 | 34 |
| 35 | 38 |
| 36 | 42 |
| 37 | 46 |
| 38 | 32 |
| 39 | 36 |
| 40 | 40 |
| 41 | 44 |
| 42 | 49 |
| 43 | 54 |
| 44 | 60 |
| 45 | 66 |
| 46 | 49 |
| 47 | 54 |
| 48 | 60 |
| 49 | 66 |
| 50 | 72 |
| 51 | 78 |
| 52 | 84 |
| 53 | 90 |
| 54 | 97 |
| 55 | 104 |
| 56 | 111 |
| 57 | 118 |
| 58 | 96 |
| 59 | 102 |
| 60 | 109 |
| 61 | 116 |
| 62 | 93 |
| 63 | 100 |
| 64 | 107 |
| 65 | 114 |
| 66 | 121 |
| 67 | 128 |
| 68 | 136 |
| 69 | 144 |
| 70 | 152 |
| 71 | 160 |
[0,0,1,1,2,1,2,4,6,3,4,6,8,4,6,8,10,13,16,20,24, 17,20,24,28,19,22,25,28,32,36,41,46,34,38,42,46, 32,36,40,44,49,54,60,66,49,54,60,66,72,78,84,90, 97,104,111,118,96,102,109,116,93,100,107,114,121, 128,136,144,152,160] |