The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 2692 |
| 3 | 10226 |
| 4 | 17194 |
| 5 | 30959 |
| 6 | 51940 |
| 7 | 84474 |
| 8 | 129934 |
| 9 | 192666 |
| 10 | 283820 |
| 11 | 424420 |
| 12 | 643532 |
| 13 | 984928 |
| 14 | 1523312 |
| 15 | 2366752 |
| 16 | 3680140 |
| 17 | 5732310 |
| 18 | 8944680 |
| 19 | 13964678 |
| 20 | 21804068 |
| 21 | 34052814 |
| 22 | 53174028 |
| 23 | 82984728 |
| 24 | 129437616 |
| 25 | 201787582 |
| 26 | 314380720 |
| 27 | 489483020 |
[0,2692,10226,17194,30959,51940,84474,129934, 192666,283820,424420,643532,984928,1523312, 2366752,3680140,5732310,8944680,13964678,21804068, 34052814,53174028,82984728,129437616,201787582, 314380720,489483020] |