| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 10 |
| 3 | 18 |
| 4 | 27 |
| 5 | 39 |
| 6 | 57 |
| 7 | 77 |
| 8 | 99 |
| 9 | 123 |
| 10 | 149 |
| 11 | 177 |
| 12 | 207 |
| 13 | 240 |
| 14 | 274 |
| 15 | 310 |
| 16 | 348 |
| 17 | 387 |
| 18 | 427 |
| 19 | 469 |
| 20 | 513 |
| 21 | 558 |
| 22 | 604 |
| 23 | 652 |
| 24 | 702 |
| 25 | 753 |
| 26 | 805 |
| 27 | 859 |
| 28 | 914 |
| 29 | 970 |
| 30 | 1027 |
| 31 | 1085 |
| 32 | 1145 |
| 33 | 1207 |
| 34 | 1270 |
| 35 | 1335 |
| 36 | 1401 |
| 37 | 1469 |
| 38 | 1538 |
| 39 | 1608 |
| 40 | 1680 |
| 41 | 1754 |
| 42 | 1829 |
| 43 | 1905 |
| 44 | 1982 |
| 45 | 2060 |
| 46 | 2140 |
| 47 | 2222 |
| 48 | 2306 |
| 49 | 2391 |
| 50 | 2477 |
[4,10,18,27,39,57,77,99,123,149,177,207,240,274, 310,348,387,427,469,513,558,604,652,702,753,805, 859,914,970,1027,1085,1145,1207,1270,1335,1401, 1469,1538,1608,1680,1754,1829,1905,1982,2060,2140, 2222,2306,2391,2477] |