| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 6 |
| 2 | 13 |
| 3 | 26 |
| 4 | 51 |
| 5 | 100 |
| 6 | 197 |
| 7 | 390 |
| 8 | 775 |
| 9 | 1544 |
| 10 | 3081 |
| 11 | 6154 |
| 12 | 12299 |
| 13 | 24588 |
| 14 | 49165 |
| 15 | 98318 |
| 16 | 196623 |
| 17 | 393232 |
| 18 | 786449 |
| 19 | 1572882 |
| 20 | 3145747 |
| 21 | 6291476 |
| 22 | 12582933 |
| 23 | 25165846 |
| 24 | 50331671 |
| 25 | 100663320 |
| 26 | 201326617 |
| 27 | 402653210 |
| 28 | 805306395 |
| 29 | 1610612764 |
| 30 | 3221225501 |
| 31 | 6442450974 |
| 32 | 12884901919 |
| 33 | 25769803808 |
| 34 | 51539607585 |
| 35 | 103079215138 |
| 36 | 206158430243 |
| 37 | 412316860452 |
| 38 | 824633720869 |
[2,6,13,26,51,100,197,390,775,1544,3081,6154, 12299,24588,49165,98318,196623,393232,786449, 1572882,3145747,6291476,12582933,25165846, 50331671,100663320,201326617,402653210,805306395, 1610612764,3221225501,6442450974,12884901919, 25769803808,51539607585,103079215138,206158430243, 412316860452,824633720869] |