| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 1 |
| 6 | 2 |
| 7 | 3 |
| 8 | 2 |
| 9 | 5 |
| 10 | 6 |
| 11 | 7 |
| 12 | 9 |
| 13 | 10 |
| 14 | 12 |
| 15 | 14 |
| 16 | 14 |
| 17 | 18 |
| 18 | 20 |
| 19 | 22 |
| 20 | 25 |
| 21 | 27 |
| 22 | 30 |
| 23 | 33 |
| 24 | 34 |
| 25 | 39 |
| 26 | 42 |
| 27 | 45 |
| 28 | 49 |
| 29 | 52 |
| 30 | 56 |
| 31 | 60 |
| 32 | 62 |
| 33 | 68 |
| 34 | 72 |
| 35 | 76 |
| 36 | 81 |
| 37 | 85 |
| 38 | 90 |
| 39 | 95 |
| 40 | 98 |
| 41 | 105 |
| 42 | 110 |
| 43 | 115 |
| 44 | 121 |
| 45 | 126 |
| 46 | 132 |
| 47 | 138 |
| 48 | 142 |
| 49 | 150 |
| 50 | 156 |
| 51 | 162 |
| 52 | 169 |
| 53 | 175 |
| 54 | 182 |
| 55 | 189 |
| 56 | 194 |
| 57 | 203 |
| 58 | 210 |
| 59 | 217 |
| 60 | 225 |
| 61 | 232 |
| 62 | 240 |
[0,0,0,1,1,2,3,2,5,6,7,9,10,12,14,14,18,20,22,25, 27,30,33,34,39,42,45,49,52,56,60,62,68,72,76,81, 85,90,95,98,105,110,115,121,126,132,138,142,150, 156,162,169,175,182,189,194,203,210,217,225,232, 240] |