The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 771 |
| 2 | 1107 |
| 3 | 1510 |
| 4 | 2443 |
| 5 | 4284 |
| 6 | 7755 |
| 7 | 13917 |
| 8 | 27182 |
| 9 | 51187 |
| 10 | 94813 |
| 11 | 189576 |
| 12 | 362736 |
| 13 | 678322 |
| 14 | 1360865 |
| 15 | 2614578 |
| 16 | 4907897 |
| 17 | 9838034 |
| 18 | 18931643 |
| 19 | 35616087 |
| 20 | 71259620 |
| 21 | 137248851 |
| 22 | 258672971 |
| 23 | 516507423 |
| 24 | 995487746 |
| 25 | 1879267853 |
| 26 | 3745133076 |
[771,1107,1510,2443,4284,7755,13917,27182,51187, 94813,189576,362736,678322,1360865,2614578, 4907897,9838034,18931643,35616087,71259620, 137248851,258672971,516507423,995487746, 1879267853,3745133076] |