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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 8 |
| 3 | 26 |
| 4 | 64 |
| 5 | 503 |
| 6 | 2800 |
| 7 | 14057 |
| 8 | 106920 |
| 9 | 726414 |
| 10 | 4754059 |
| 11 | 34128075 |
| 12 | 239110536 |
| 13 | 1659205332 |
| 14 | 11741639971 |
| 15 | 82670906105 |
| 16 | 580742887850 |
| 17 | 4096686036016 |
| 18 | 28868334349248 |
| 19 | 203319450955099 |
| 20 | 1433261257604415 |
| 21 | 10101271316316501 |
| 22 | 71182444679538708 |
| 23 | 501710615195327515 |
| 24 | 3536012447004641894 |
[1,8,26,64,503,2800,14057,106920,726414,4754059, 34128075,239110536,1659205332,11741639971, 82670906105,580742887850,4096686036016, 28868334349248,203319450955099,1433261257604415, 10101271316316501,71182444679538708, 501710615195327515,3536012447004641894] |