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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 4 |
| 2 | 9 |
| 3 | 18 |
| 4 | 32 |
| 5 | 48 |
| 6 | 68 |
| 7 | 96 |
| 8 | 126 |
| 9 | 155 |
| 10 | 191 |
| 11 | 234 |
| 12 | 277 |
| 13 | 322 |
| 14 | 373 |
| 15 | 429 |
| 16 | 490 |
| 17 | 555 |
| 18 | 620 |
| 19 | 688 |
| 20 | 765 |
| 21 | 845 |
| 22 | 923 |
| 23 | 1007 |
| 24 | 1099 |
| 25 | 1192 |
| 26 | 1289 |
| 27 | 1395 |
| 28 | 1500 |
| 29 | 1602 |
| 30 | 1716 |
| 31 | 1838 |
| 32 | 1954 |
| 33 | 2073 |
| 34 | 2203 |
| 35 | 2336 |
| 36 | 2473 |
| 37 | 2617 |
| 38 | 2757 |
| 39 | 2897 |
| 40 | 3053 |
| 41 | 3212 |
| 42 | 3362 |
| 43 | 3521 |
| 44 | 3692 |
| 45 | 3861 |
| 46 | 4035 |
| 47 | 4220 |
[1,4,9,18,32,48,68,96,126,155,191,234,277,322,373, 429,490,555,620,688,765,845,923,1007,1099,1192, 1289,1395,1500,1602,1716,1838,1954,2073,2203,2336, 2473,2617,2757,2897,3053,3212,3362,3521,3692,3861, 4035,4220] |