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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 0 |
| 3 | 0 |
| 4 | 121 |
| 5 | 0 |
| 6 | 0 |
| 7 | 25 |
| 8 | 0 |
| 9 | 12321 |
| 10 | 2116 |
| 11 | 0 |
| 12 | 0 |
| 13 | 5112121 |
| 14 | 0 |
| 15 | 0 |
| 16 | 121242121 |
| 17 | 0 |
| 18 | 1121513121 |
| 19 | 2511112321 |
| 20 | 0 |
| 21 | 0 |
| 22 | 213223221121 |
| 23 | 0 |
| 24 | 0 |
| 25 | 1212111311221321 |
| 26 | 0 |
| 27 | 4231211211113121 |
| 28 | 1111111222222225 |
| 29 | 0 |
| 30 | 0 |
| 31 | 111131111122142224 |
| 32 | 0 |
| 33 | 0 |
| 34 | 11111111122222222225 |
[1,0,0,121,0,0,25,0,12321,2116,0,0,5112121,0,0, 121242121,0,1121513121,2511112321,0,0, 213223221121,0,0,1212111311221321,0, 4231211211113121,1111111222222225,0,0, 111131111122142224,0,0,11111111122222222225] |