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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 5 |
| 4 | 14 |
| 5 | 37 |
| 6 | 116 |
| 7 | 360 |
| 8 | 1153 |
| 9 | 3817 |
| 10 | 12954 |
| 11 | 44046 |
| 12 | 154992 |
| 13 | 545891 |
| 14 | 1945476 |
| 15 | 7064170 |
| 16 | 25693848 |
| 17 | 94083579 |
| 18 | 350376440 |
| 19 | 1301899782 |
| 20 | 4869681054 |
| 21 | 18458415299 |
| 22 | 69773046856 |
| 23 | 265110681738 |
| 24 | 1019157361190 |
| 25 | 3903891771434 |
| 26 | 15021935369908 |
| 27 | 58394707450808 |
| 28 | 226123722643103 |
| 29 | 879041601998166 |
| 30 | 3448592905706929 |
[1,1,2,5,14,37,116,360,1153,3817,12954,44046, 154992,545891,1945476,7064170,25693848,94083579, 350376440,1301899782,4869681054,18458415299, 69773046856,265110681738,1019157361190, 3903891771434,15021935369908,58394707450808, 226123722643103,879041601998166,3448592905706929] |