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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 | 2 |
| 2 | 7 |
| 3 | 12 |
| 4 | 31 |
| 5 | 56 |
| 6 | 127 |
| 7 | 240 |
| 8 | 511 |
| 9 | 992 |
| 10 | 2047 |
| 11 | 4032 |
| 12 | 8191 |
| 13 | 16256 |
| 14 | 32767 |
| 15 | 65280 |
| 16 | 131071 |
| 17 | 261632 |
| 18 | 524287 |
| 19 | 1047552 |
| 20 | 2097151 |
| 21 | 4192256 |
| 22 | 8388607 |
| 23 | 16773120 |
| 24 | 33554431 |
| 25 | 67100672 |
| 26 | 134217727 |
| 27 | 268419072 |
| 28 | 536870911 |
| 29 | 1073709056 |
| 30 | 2147483647 |
| 31 | 4294901760 |
| 32 | 8589934591 |
[1,2,7,12,31,56,127,240,511,992,2047,4032,8191, 16256,32767,65280,131071,261632,524287,1047552, 2097151,4192256,8388607,16773120,33554431, 67100672,134217727,268419072,536870911,1073709056, 2147483647,4294901760,8589934591] |