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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 4 |
| 2 | 12 |
| 3 | 20 |
| 4 | 31 |
| 5 | 61 |
| 6 | 88 |
| 7 | 120 |
| 8 | 159 |
| 9 | 197 |
| 10 | 248 |
| 11 | 299 |
| 12 | 368 |
| 13 | 427 |
| 14 | 482 |
| 15 | 589 |
| 16 | 642 |
| 17 | 725 |
| 18 | 840 |
| 19 | 939 |
| 20 | 1005 |
| 21 | 1126 |
| 22 | 1271 |
| 23 | 1367 |
| 24 | 1465 |
| 25 | 1624 |
| 26 | 1732 |
| 27 | 1876 |
| 28 | 2067 |
| 29 | 2148 |
| 30 | 2297 |
| 31 | 2502 |
| 32 | 2674 |
| 33 | 2838 |
| 34 | 2972 |
| 35 | 3157 |
| 36 | 3374 |
| 37 | 3561 |
| 38 | 3764 |
| 39 | 3936 |
| 40 | 4143 |
| 41 | 4362 |
| 42 | 4624 |
| 43 | 4826 |
| 44 | 4962 |
| 45 | 5286 |
| 46 | 5508 |
| 47 | 5733 |
[1,4,12,20,31,61,88,120,159,197,248,299,368,427, 482,589,642,725,840,939,1005,1126,1271,1367,1465, 1624,1732,1876,2067,2148,2297,2502,2674,2838,2972, 3157,3374,3561,3764,3936,4143,4362,4624,4826,4962, 5286,5508,5733] |