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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 1 |
| 3 | 14 |
| 4 | 3 |
| 5 | 60 |
| 6 | 3 |
| 7 | 252 |
| 8 | 3 |
| 9 | 1023 |
| 10 | 4 |
| 11 | 4091 |
| 12 | 28 |
| 13 | 16379 |
| 14 | 52 |
| 15 | 65487 |
| 16 | 241 |
| 17 | 262143 |
| 18 | 48 |
| 19 | 1048527 |
| 20 | 249 |
| 21 | 4194207 |
| 22 | 609 |
| 23 | 16777118 |
| 24 | 1139 |
| 25 | 67107727 |
| 26 | 2033 |
| 27 | 268433614 |
| 28 | 1843 |
| 29 | 1073741548 |
| 30 | 4371 |
| 31 | 4294967293 |
| 32 | 33026 |
| 33 | 17179868927 |
| 34 | 13057 |
| 35 | 68719476478 |
| 36 | 2343 |
| 37 | 274877904857 |
| 38 | 231535 |
[1,3,1,14,3,60,3,252,3,1023,4,4091,28,16379,52, 65487,241,262143,48,1048527,249,4194207,609, 16777118,1139,67107727,2033,268433614,1843, 1073741548,4371,4294967293,33026,17179868927, 13057,68719476478,2343,274877904857,231535] |