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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 6 |
| 5 | 8 |
| 6 | 11 |
| 7 | 14 |
| 8 | 18 |
| 9 | 22 |
| 10 | 26 |
| 11 | 30 |
| 12 | 35 |
| 13 | 40 |
| 14 | 45 |
| 15 | 51 |
| 16 | 57 |
| 17 | 63 |
| 18 | 69 |
| 19 | 76 |
| 20 | 83 |
| 21 | 90 |
| 22 | 97 |
| 23 | 105 |
| 24 | 113 |
| 25 | 121 |
| 26 | 129 |
| 27 | 138 |
| 28 | 147 |
| 29 | 156 |
| 30 | 165 |
| 31 | 174 |
| 32 | 184 |
| 33 | 194 |
| 34 | 204 |
| 35 | 214 |
| 36 | 224 |
| 37 | 235 |
| 38 | 246 |
| 39 | 257 |
| 40 | 268 |
| 41 | 279 |
| 42 | 291 |
| 43 | 303 |
| 44 | 315 |
| 45 | 327 |
| 46 | 339 |
| 47 | 352 |
| 48 | 365 |
| 49 | 378 |
| 50 | 391 |
| 51 | 404 |
| 52 | 417 |
| 53 | 431 |
| 54 | 445 |
| 55 | 459 |
| 56 | 473 |
| 57 | 487 |
[0,1,2,4,6,8,11,14,18,22,26,30,35,40,45,51,57,63, 69,76,83,90,97,105,113,121,129,138,147,156,165, 174,184,194,204,214,224,235,246,257,268,279,291, 303,315,327,339,352,365,378,391,404,417,431,445, 459,473,487] |