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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 0 |
| 3 | 7 |
| 4 | 16 |
| 5 | 31 |
| 6 | 0 |
| 7 | 255 |
| 8 | 0 |
| 9 | 511 |
| 10 | 0 |
| 11 | 2047 |
| 12 | 4096 |
| 13 | 8191 |
| 14 | 0 |
| 15 | 28671 |
| 16 | 73728 |
| 17 | 114687 |
| 18 | 32768 |
| 19 | 458751 |
| 20 | 1179648 |
| 21 | 1703935 |
| 22 | 262144 |
| 23 | 6815743 |
| 24 | 19922944 |
| 25 | 27262975 |
| 26 | 12582912 |
| 27 | 8388607 |
| 28 | 520093696 |
| 29 | 8388607 |
| 30 | 2030043136 |
| 31 | 234881023 |
| 32 | 603979776 |
| 33 | 3087007743 |
| 34 | 2147483648 |
[1,1,0,7,16,31,0,255,0,511,0,2047,4096,8191,0, 28671,73728,114687,32768,458751,1179648,1703935, 262144,6815743,19922944,27262975,12582912,8388607, 520093696,8388607,2030043136,234881023,603979776, 3087007743,2147483648] |