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| n | a(n) |
|---|---|
| 0 | 4 |
| 1 | 6 |
| 2 | 13 |
| 3 | 27 |
| 4 | 50 |
| 5 | 84 |
| 6 | 131 |
| 7 | 193 |
| 8 | 272 |
| 9 | 370 |
| 10 | 489 |
| 11 | 631 |
| 12 | 798 |
| 13 | 992 |
| 14 | 1215 |
| 15 | 1469 |
| 16 | 1756 |
| 17 | 2078 |
| 18 | 2437 |
| 19 | 2835 |
| 20 | 3274 |
| 21 | 3756 |
| 22 | 4283 |
| 23 | 4857 |
| 24 | 5480 |
| 25 | 6154 |
| 26 | 6881 |
| 27 | 7663 |
| 28 | 8502 |
| 29 | 9400 |
| 30 | 10359 |
| 31 | 11381 |
| 32 | 12468 |
| 33 | 13622 |
| 34 | 14845 |
| 35 | 16139 |
| 36 | 17506 |
| 37 | 18948 |
| 38 | 20467 |
| 39 | 22065 |
| 40 | 23744 |
| 41 | 25506 |
| 42 | 27353 |
| 43 | 29287 |
[4,6,13,27,50,84,131,193,272,370,489,631,798,992, 1215,1469,1756,2078,2437,2835,3274,3756,4283,4857, 5480,6154,6881,7663,8502,9400,10359,11381,12468, 13622,14845,16139,17506,18948,20467,22065,23744, 25506,27353,29287] |