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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 12 |
| 3 | 10 |
| 4 | 50 |
| 5 | 148 |
| 6 | 493 |
| 7 | 2093 |
| 8 | 8047 |
| 9 | 31951 |
| 10 | 128472 |
| 11 | 511830 |
| 12 | 2047349 |
| 13 | 8191875 |
| 14 | 32754509 |
| 15 | 131023111 |
| 16 | 524086312 |
| 17 | 2096237838 |
| 18 | 8384859457 |
| 19 | 33538726179 |
| 20 | 134151944073 |
| 21 | 536597656559 |
| 22 | 2146347416764 |
| 23 | 8585218405150 |
| 24 | 34340195856617 |
[1,12,10,50,148,493,2093,8047,31951,128472,511830, 2047349,8191875,32754509,131023111,524086312, 2096237838,8384859457,33538726179,134151944073, 536597656559,2146347416764,8585218405150, 34340195856617] |