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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 | 6 |
| 3 | 22 |
| 4 | 65 |
| 5 | 171 |
| 6 | 420 |
| 7 | 988 |
| 8 | 2259 |
| 9 | 5065 |
| 10 | 11198 |
| 11 | 24498 |
| 12 | 53157 |
| 13 | 114583 |
| 14 | 245640 |
| 15 | 524152 |
| 16 | 1113959 |
| 17 | 2359125 |
| 18 | 4980546 |
| 19 | 10485550 |
| 20 | 22019865 |
| 21 | 46137091 |
| 22 | 96468716 |
| 23 | 201326292 |
| 24 | 419430075 |
| 25 | 872414881 |
| 26 | 1811938950 |
| 27 | 3758095978 |
| 28 | 7784627789 |
| 29 | 16106126895 |
| 30 | 33285996048 |
[1,6,22,65,171,420,988,2259,5065,11198,24498, 53157,114583,245640,524152,1113959,2359125, 4980546,10485550,22019865,46137091,96468716, 201326292,419430075,872414881,1811938950, 3758095978,7784627789,16106126895,33285996048] |