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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 4 |
| 2 | 12 |
| 3 | 21 |
| 4 | 37 |
| 5 | 58 |
| 6 | 87 |
| 7 | 119 |
| 8 | 154 |
| 9 | 182 |
| 10 | 227 |
| 11 | 287 |
| 12 | 346 |
| 13 | 404 |
| 14 | 450 |
| 15 | 519 |
| 16 | 585 |
| 17 | 679 |
| 18 | 767 |
| 19 | 846 |
| 20 | 927 |
| 21 | 1029 |
| 22 | 1120 |
| 23 | 1226 |
| 24 | 1367 |
| 25 | 1455 |
| 26 | 1579 |
| 27 | 1695 |
| 28 | 1788 |
| 29 | 1943 |
| 30 | 2142 |
| 31 | 2274 |
| 32 | 2381 |
| 33 | 2528 |
| 34 | 2619 |
| 35 | 2848 |
| 36 | 3090 |
| 37 | 3220 |
| 38 | 3354 |
| 39 | 3517 |
| 40 | 3651 |
| 41 | 3889 |
| 42 | 4227 |
| 43 | 4357 |
| 44 | 4484 |
| 45 | 4658 |
| 46 | 4815 |
| 47 | 5151 |
[1,4,12,21,37,58,87,119,154,182,227,287,346,404, 450,519,585,679,767,846,927,1029,1120,1226,1367, 1455,1579,1695,1788,1943,2142,2274,2381,2528,2619, 2848,3090,3220,3354,3517,3651,3889,4227,4357,4484, 4658,4815,5151] |