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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 3 |
| 3 | 0 |
| 4 | 9 |
| 5 | 0 |
| 6 | 27 |
| 7 | 0 |
| 8 | 81 |
| 9 | 0 |
| 10 | 243 |
| 11 | 0 |
| 12 | 729 |
| 13 | 0 |
| 14 | 2187 |
| 15 | 0 |
| 16 | 6561 |
| 17 | 0 |
| 18 | 19683 |
| 19 | 0 |
| 20 | 59049 |
| 21 | 0 |
| 22 | 177147 |
| 23 | 0 |
| 24 | 531441 |
| 25 | 0 |
| 26 | 1594323 |
| 27 | 0 |
| 28 | 4782969 |
| 29 | 0 |
| 30 | 14348907 |
| 31 | 0 |
| 32 | 43046721 |
| 33 | 0 |
| 34 | 129140163 |
| 35 | 0 |
| 36 | 387420489 |
| 37 | 0 |
| 38 | 1162261467 |
| 39 | 0 |
| 40 | 3486784401 |
| 41 | 0 |
| 42 | 10460353203 |
| 43 | 0 |
| 44 | 31381059609 |
| 45 | 0 |
| 46 | 94143178827 |
[1,0,3,0,9,0,27,0,81,0,243,0,729,0,2187,0,6561,0, 19683,0,59049,0,177147,0,531441,0,1594323,0, 4782969,0,14348907,0,43046721,0,129140163,0, 387420489,0,1162261467,0,3486784401,0,10460353203, 0,31381059609,0,94143178827] |