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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 3 |
| 3 | 4 |
| 4 | 16 |
| 5 | 32 |
| 6 | 100 |
| 7 | 242 |
| 8 | 710 |
| 9 | 1906 |
| 10 | 5628 |
| 11 | 16166 |
| 12 | 49197 |
| 13 | 149238 |
| 14 | 471665 |
| 15 | 1501246 |
| 16 | 4936440 |
| 17 | 16416352 |
| 18 | 56114886 |
| 19 | 194327112 |
| 20 | 689266460 |
| 21 | 2478250388 |
| 22 | 9101930092 |
| 23 | 33886851758 |
| 24 | 128597508191 |
| 25 | 494569810826 |
| 26 | 1935407461619 |
| 27 | 7672504574678 |
| 28 | 30904945481430 |
| 29 | 126049107117078 |
| 30 | 521740433396700 |
| 31 | 2185664622577434 |
| 32 | 9282632762832077 |
[1,0,3,4,16,32,100,242,710,1906,5628,16166,49197, 149238,471665,1501246,4936440,16416352,56114886, 194327112,689266460,2478250388,9101930092, 33886851758,128597508191,494569810826, 1935407461619,7672504574678,30904945481430, 126049107117078,521740433396700,2185664622577434, 9282632762832077] |