The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 12 |
| 1 | 15 |
| 2 | 33 |
| 3 | 63 |
| 4 | 72 |
| 5 | 132 |
| 6 | 240 |
| 7 | 273 |
| 8 | 495 |
| 9 | 897 |
| 10 | 1020 |
| 11 | 1848 |
| 12 | 3348 |
| 13 | 3807 |
| 14 | 6897 |
| 15 | 12495 |
| 16 | 14208 |
| 17 | 25740 |
| 18 | 46632 |
| 19 | 53025 |
| 20 | 96063 |
| 21 | 174033 |
| 22 | 197892 |
| 23 | 358512 |
| 24 | 649500 |
| 25 | 738543 |
| 26 | 1337985 |
| 27 | 2423967 |
| 28 | 2756280 |
| 29 | 4993428 |
| 30 | 9046368 |
| 31 | 10286577 |
| 32 | 18635727 |
| 33 | 33761505 |
| 34 | 38390028 |
| 35 | 69549480 |
[12,15,33,63,72,132,240,273,495,897,1020,1848, 3348,3807,6897,12495,14208,25740,46632,53025, 96063,174033,197892,358512,649500,738543,1337985, 2423967,2756280,4993428,9046368,10286577,18635727, 33761505,38390028,69549480] |