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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 8 |
| 3 | 19 |
| 4 | 31 |
| 5 | 165 |
| 6 | 251 |
| 7 | 931 |
| 8 | 1880 |
| 9 | 5556 |
| 10 | 15236 |
| 11 | 36242 |
| 12 | 100659 |
| 13 | 238001 |
| 14 | 672366 |
| 15 | 1720580 |
| 16 | 4457811 |
| 17 | 11495347 |
| 18 | 29435188 |
| 19 | 78700799 |
| 20 | 203112497 |
| 21 | 528285928 |
| 22 | 1357620133 |
| 23 | 3537680945 |
| 24 | 9273276601 |
| 25 | 24073315272 |
| 26 | 62428922801 |
| 27 | 161432508844 |
[2,8,19,31,165,251,931,1880,5556,15236,36242, 100659,238001,672366,1720580,4457811,11495347, 29435188,78700799,203112497,528285928,1357620133, 3537680945,9273276601,24073315272,62428922801, 161432508844] |