The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 15 |
| 2 | 55 |
| 3 | 247 |
| 4 | 799 |
| 5 | 943 |
| 6 | 4087 |
| 7 | 14359 |
| 8 | 14863 |
| 9 | 15943 |
| 10 | 51847 |
| 11 | 56887 |
| 12 | 59911 |
| 13 | 62287 |
| 14 | 64807 |
| 15 | 65311 |
| 16 | 200143 |
| 17 | 208783 |
| 18 | 234919 |
| 19 | 245503 |
| 20 | 255583 |
| 21 | 259543 |
| 22 | 260119 |
| 23 | 262063 |
| 24 | 848767 |
| 25 | 869647 |
| 26 | 884551 |
| 27 | 960367 |
| 28 | 974047 |
| 29 | 977287 |
| 30 | 983551 |
| 31 | 1003207 |
| 32 | 1026967 |
[15,55,247,799,943,4087,14359,14863,15943,51847, 56887,59911,62287,64807,65311,200143,208783, 234919,245503,255583,259543,260119,262063,848767, 869647,884551,960367,974047,977287,983551,1003207, 1026967] |