The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 4 | 1 |
| 5 | 1 |
| 6 | 3 |
| 7 | 5 |
| 8 | 11 |
| 9 | 18 |
| 10 | 34 |
| 11 | 55 |
| 12 | 96 |
| 13 | 152 |
| 14 | 248 |
| 15 | 386 |
| 16 | 607 |
| 17 | 921 |
| 18 | 1405 |
| 19 | 2092 |
| 20 | 3112 |
| 21 | 4551 |
| 22 | 6635 |
| 23 | 9545 |
| 24 | 13683 |
| 25 | 19401 |
| 26 | 27393 |
| 27 | 38346 |
| 28 | 53441 |
| 29 | 73928 |
| 30 | 101840 |
| 31 | 139398 |
| 32 | 190020 |
| 33 | 257601 |
| 34 | 347836 |
| 35 | 467381 |
| 36 | 625686 |
| 37 | 833917 |
| 38 | 1107547 |
| 39 | 1465136 |
| 40 | 1931754 |
| 41 | 2537747 |
| 42 | 3323490 |
| 43 | 4338012 |
| 44 | 5645645 |
[1,1,3,5,11,18,34,55,96,152,248,386,607,921,1405, 2092,3112,4551,6635,9545,13683,19401,27393,38346, 53441,73928,101840,139398,190020,257601,347836, 467381,625686,833917,1107547,1465136,1931754, 2537747,3323490,4338012,5645645] |