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) |
|---|---|
| 0 | 1 |
| 1 | 6 |
| 2 | 19 |
| 3 | 45 |
| 4 | 102 |
| 5 | 215 |
| 6 | 445 |
| 7 | 904 |
| 8 | 1826 |
| 9 | 3669 |
| 10 | 7359 |
| 11 | 14738 |
| 12 | 29500 |
| 13 | 59023 |
| 14 | 118073 |
| 15 | 236172 |
| 16 | 472376 |
| 17 | 944782 |
| 18 | 1889599 |
| 19 | 3779231 |
| 20 | 7558500 |
| 21 | 15117036 |
| 22 | 30234113 |
| 23 | 60468265 |
| 24 | 120936574 |
| 25 | 241873190 |
| 26 | 483746427 |
| 27 | 967492899 |
| 28 | 1934985848 |
| 29 | 3869971744 |
| 30 | 7739943541 |
| 31 | 15479887133 |
[1,6,19,45,102,215,445,904,1826,3669,7359,14738, 29500,59023,118073,236172,472376,944782,1889599, 3779231,7558500,15117036,30234113,60468265, 120936574,241873190,483746427,967492899, 1934985848,3869971744,7739943541,15479887133] |