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| n | a(n) |
|---|---|
| 4 | 1 |
| 5 | 2 |
| 6 | 3 |
| 7 | 4 |
| 8 | 7 |
| 9 | 14 |
| 10 | 18 |
| 11 | 29 |
| 12 | 35 |
| 13 | 49 |
| 14 | 57 |
| 15 | 74 |
| 16 | 84 |
| 17 | 105 |
| 18 | 115 |
| 19 | 140 |
| 20 | 155 |
| 21 | 180 |
| 22 | 195 |
| 23 | 228 |
| 24 | 244 |
| 25 | 278 |
| 26 | 296 |
| 27 | 332 |
| 28 | 356 |
| 29 | 397 |
| 30 | 416 |
| 31 | 460 |
| 32 | 487 |
| 33 | 534 |
| 34 | 559 |
| 35 | 612 |
| 36 | 637 |
| 37 | 691 |
| 38 | 722 |
| 39 | 779 |
| 40 | 814 |
| 41 | 872 |
| 42 | 901 |
| 43 | 968 |
| 44 | 1007 |
| 45 | 1073 |
| 46 | 1107 |
| 47 | 1180 |
| 48 | 1218 |
| 49 | 1292 |
| 50 | 1333 |
| 51 | 1407 |
[1,2,3,4,7,14,18,29,35,49,57,74,84,105,115,140, 155,180,195,228,244,278,296,332,356,397,416,460, 487,534,559,612,637,691,722,779,814,872,901,968, 1007,1073,1107,1180,1218,1292,1333,1407] |