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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 2 |
| 3 | 4 |
| 4 | 9 |
| 5 | 13 |
| 6 | 20 |
| 7 | 26 |
| 8 | 35 |
| 9 | 43 |
| 10 | 54 |
| 11 | 64 |
| 12 | 77 |
| 13 | 89 |
| 14 | 104 |
| 15 | 118 |
| 16 | 135 |
| 17 | 151 |
| 18 | 170 |
| 19 | 188 |
| 20 | 209 |
| 21 | 229 |
| 22 | 252 |
| 23 | 274 |
| 24 | 299 |
| 25 | 323 |
| 26 | 350 |
| 27 | 376 |
| 28 | 405 |
| 29 | 433 |
| 30 | 464 |
| 31 | 494 |
| 32 | 527 |
| 33 | 559 |
| 34 | 594 |
| 35 | 628 |
| 36 | 665 |
| 37 | 701 |
| 38 | 740 |
| 39 | 778 |
| 40 | 819 |
| 41 | 859 |
| 42 | 902 |
| 43 | 944 |
| 44 | 989 |
| 45 | 1033 |
| 46 | 1080 |
| 47 | 1126 |
| 48 | 1175 |
| 49 | 1223 |
| 50 | 1274 |
| 51 | 1324 |
| 52 | 1377 |
| 53 | 1429 |
[0,2,4,9,13,20,26,35,43,54,64,77,89,104,118,135, 151,170,188,209,229,252,274,299,323,350,376,405, 433,464,494,527,559,594,628,665,701,740,778,819, 859,902,944,989,1033,1080,1126,1175,1223,1274, 1324,1377,1429] |