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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 3 |
| 2 | 6 |
| 3 | 9 |
| 4 | 18 |
| 5 | 21 |
| 6 | 30 |
| 7 | 39 |
| 8 | 48 |
| 9 | 63 |
| 10 | 72 |
| 11 | 87 |
| 12 | 108 |
| 13 | 111 |
| 14 | 120 |
| 15 | 129 |
| 16 | 144 |
| 17 | 171 |
| 18 | 186 |
| 19 | 225 |
| 20 | 246 |
| 21 | 273 |
| 22 | 312 |
| 23 | 333 |
| 24 | 366 |
| 25 | 405 |
| 26 | 414 |
| 27 | 435 |
| 28 | 456 |
| 29 | 483 |
| 30 | 528 |
| 31 | 561 |
| 32 | 624 |
| 33 | 669 |
| 34 | 714 |
| 35 | 765 |
| 36 | 798 |
| 37 | 837 |
| 38 | 882 |
| 39 | 927 |
| 40 | 972 |
| 41 | 999 |
| 42 | 1032 |
| 43 | 1089 |
| 44 | 1128 |
| 45 | 1191 |
| 46 | 1254 |
| 47 | 1305 |
| 48 | 1356 |
| 49 | 1425 |
| 50 | 1476 |
| 51 | 1557 |
| 52 | 1608 |
[0,3,6,9,18,21,30,39,48,63,72,87,108,111,120,129, 144,171,186,225,246,273,312,333,366,405,414,435, 456,483,528,561,624,669,714,765,798,837,882,927, 972,999,1032,1089,1128,1191,1254,1305,1356,1425, 1476,1557,1608] |