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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 | 1 |
| 3 | 7 |
| 4 | 13 |
| 5 | 19 |
| 6 | 61 |
| 7 | 145 |
| 8 | 301 |
| 9 | 745 |
| 10 | 1729 |
| 11 | 4915 |
| 12 | 11737 |
| 13 | 28675 |
| 14 | 73945 |
| 15 | 200545 |
| 16 | 513265 |
| 17 | 1272385 |
| 18 | 3303745 |
| 19 | 8918911 |
| 20 | 23137501 |
| 21 | 59225587 |
| 22 | 155387413 |
| 23 | 420267097 |
| 24 | 1104554845 |
| 25 | 2876555737 |
| 26 | 7574538529 |
| 27 | 20668692859 |
| 28 | 54731279065 |
| 29 | 143892912259 |
| 30 | 383051857489 |
[1,1,7,13,19,61,145,301,745,1729,4915,11737,28675, 73945,200545,513265,1272385,3303745,8918911, 23137501,59225587,155387413,420267097,1104554845, 2876555737,7574538529,20668692859,54731279065, 143892912259,383051857489] |