The OEIS is supported by the many generous donors to the OEIS Foundation.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 10 | 1 |
| 11 | 4 |
| 12 | 20 |
| 13 | 83 |
| 14 | 318 |
| 15 | 1095 |
| 16 | 3495 |
| 17 | 10292 |
| 18 | 28389 |
| 19 | 73586 |
| 20 | 180663 |
| 21 | 421949 |
| 22 | 942537 |
| 23 | 2021060 |
| 24 | 4176507 |
| 25 | 8342823 |
| 26 | 16157071 |
| 27 | 30410396 |
| 28 | 55755744 |
| 29 | 99773709 |
| 30 | 174579270 |
| 31 | 299163528 |
| 32 | 502804996 |
| 33 | 829905792 |
| 34 | 1346834873 |
| 35 | 2151396469 |
[1,4,20,83,318,1095,3495,10292,28389,73586,180663, 421949,942537,2021060,4176507,8342823,16157071, 30410396,55755744,99773709,174579270,299163528, 502804996,829905792,1346834873,2151396469] |