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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 6 |
| 6 | 9 |
| 7 | 11 |
| 8 | 14 |
| 9 | 18 |
| 10 | 22 |
| 11 | 26 |
| 12 | 30 |
| 13 | 35 |
| 14 | 41 |
| 15 | 46 |
| 16 | 51 |
| 17 | 58 |
| 18 | 65 |
| 19 | 71 |
| 20 | 78 |
| 21 | 86 |
| 22 | 94 |
| 23 | 102 |
| 24 | 110 |
| 25 | 119 |
| 26 | 128 |
| 27 | 138 |
| 28 | 147 |
| 29 | 157 |
| 30 | 167 |
| 31 | 178 |
| 32 | 189 |
| 33 | 200 |
| 34 | 211 |
| 35 | 223 |
| 36 | 236 |
| 37 | 248 |
| 38 | 260 |
| 39 | 273 |
| 40 | 288 |
| 41 | 301 |
| 42 | 314 |
| 43 | 328 |
| 44 | 344 |
| 45 | 358 |
| 46 | 373 |
| 47 | 388 |
| 48 | 405 |
| 49 | 420 |
| 50 | 436 |
| 51 | 452 |
| 52 | 471 |
| 53 | 487 |
| 54 | 504 |
| 55 | 521 |
| 56 | 541 |
[1,2,3,4,6,9,11,14,18,22,26,30,35,41,46,51,58,65, 71,78,86,94,102,110,119,128,138,147,157,167,178, 189,200,211,223,236,248,260,273,288,301,314,328, 344,358,373,388,405,420,436,452,471,487,504,521, 541] |