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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 3 |
| 4 | 6 |
| 5 | 11 |
| 6 | 17 |
| 7 | 23 |
| 8 | 31 |
| 9 | 41 |
| 10 | 53 |
| 11 | 67 |
| 12 | 80 |
| 13 | 92 |
| 14 | 108 |
| 15 | 126 |
| 16 | 142 |
| 17 | 163 |
| 18 | 185 |
| 19 | 204 |
| 20 | 225 |
| 21 | 249 |
| 22 | 272 |
| 23 | 299 |
| 24 | 327 |
| 25 | 355 |
| 26 | 384 |
| 27 | 414 |
| 28 | 446 |
| 29 | 478 |
| 30 | 510 |
| 31 | 546 |
| 32 | 584 |
| 33 | 625 |
| 34 | 662 |
| 35 | 702 |
| 36 | 742 |
| 37 | 784 |
| 38 | 828 |
| 39 | 872 |
| 40 | 918 |
| 41 | 966 |
| 42 | 1011 |
| 43 | 1058 |
| 44 | 1110 |
| 45 | 1158 |
| 46 | 1212 |
| 47 | 1266 |
| 48 | 1319 |
| 49 | 1377 |
| 50 | 1435 |
| 51 | 1490 |
| 52 | 1548 |
| 53 | 1605 |
| 54 | 1665 |
| 55 | 1729 |
[0,1,3,6,11,17,23,31,41,53,67,80,92,108,126,142, 163,185,204,225,249,272,299,327,355,384,414,446, 478,510,546,584,625,662,702,742,784,828,872,918, 966,1011,1058,1110,1158,1212,1266,1319,1377,1435, 1490,1548,1605,1665,1729] |