| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 7 |
| 5 | 10 |
| 6 | 14 |
| 7 | 19 |
| 8 | 26 |
| 9 | 33 |
| 10 | 41 |
| 11 | 52 |
| 12 | 62 |
| 13 | 74 |
| 14 | 86 |
| 15 | 99 |
| 16 | 114 |
| 17 | 129 |
| 18 | 145 |
| 19 | 164 |
| 20 | 182 |
| 21 | 201 |
| 22 | 221 |
| 23 | 242 |
| 24 | 265 |
| 25 | 289 |
| 26 | 314 |
| 27 | 339 |
| 28 | 365 |
| 29 | 392 |
| 30 | 420 |
| 31 | 449 |
| 32 | 479 |
| 33 | 511 |
| 34 | 543 |
| 35 | 576 |
| 36 | 610 |
| 37 | 645 |
| 38 | 681 |
| 39 | 720 |
| 40 | 758 |
| 41 | 797 |
| 42 | 837 |
| 43 | 878 |
| 44 | 921 |
| 45 | 964 |
| 46 | 1008 |
| 47 | 1053 |
| 48 | 1101 |
| 49 | 1148 |
| 50 | 1196 |
| 51 | 1245 |
| 52 | 1295 |
| 53 | 1347 |
| 54 | 1400 |
[1,2,4,7,10,14,19,26,33,41,52,62,74,86,99,114,129, 145,164,182,201,221,242,265,289,314,339,365,392, 420,449,479,511,543,576,610,645,681,720,758,797, 837,878,921,964,1008,1053,1101,1148,1196,1245, 1295,1347,1400] |