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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 6 |
| 6 | 8 |
| 7 | 10 |
| 8 | 15 |
| 9 | 18 |
| 10 | 20 |
| 11 | 21 |
| 12 | 28 |
| 13 | 36 |
| 14 | 40 |
| 15 | 45 |
| 16 | 48 |
| 17 | 55 |
| 18 | 63 |
| 19 | 66 |
| 20 | 70 |
| 21 | 78 |
| 22 | 91 |
| 23 | 105 |
| 24 | 112 |
| 25 | 120 |
| 26 | 121 |
| 27 | 136 |
| 28 | 153 |
| 29 | 155 |
| 30 | 168 |
| 31 | 171 |
| 32 | 186 |
| 33 | 190 |
| 34 | 204 |
| 35 | 210 |
| 36 | 231 |
| 37 | 240 |
| 38 | 253 |
| 39 | 276 |
| 40 | 300 |
| 41 | 312 |
| 42 | 325 |
| 43 | 330 |
| 44 | 351 |
| 45 | 378 |
| 46 | 406 |
| 47 | 435 |
| 48 | 440 |
| 49 | 465 |
| 50 | 496 |
| 51 | 528 |
| 52 | 561 |
| 53 | 572 |
| 54 | 595 |
| 55 | 624 |
| 56 | 630 |
| 57 | 666 |
| 58 | 682 |
| 59 | 703 |
[0,1,2,3,6,8,10,15,18,20,21,28,36,40,45,48,55,63, 66,70,78,91,105,112,120,121,136,153,155,168,171, 186,190,204,210,231,240,253,276,300,312,325,330, 351,378,406,435,440,465,496,528,561,572,595,624, 630,666,682,703] |