The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 3 |
| 6 | 5 |
| 7 | 7 |
| 8 | 8 |
| 9 | 11 |
| 10 | 16 |
| 11 | 24 |
| 12 | 32 |
| 13 | 42 |
| 14 | 61 |
| 15 | 82 |
| 16 | 118 |
| 17 | 166 |
| 18 | 231 |
| 19 | 322 |
| 20 | 453 |
| 21 | 635 |
| 22 | 892 |
| 23 | 1253 |
| 24 | 1767 |
| 25 | 2487 |
| 26 | 3505 |
| 27 | 4936 |
| 28 | 6959 |
| 29 | 9816 |
| 30 | 13850 |
| 31 | 19538 |
| 32 | 27578 |
| 33 | 38933 |
| 34 | 54972 |
| 35 | 77641 |
| 36 | 109668 |
| 37 | 154922 |
| 38 | 218879 |
| 39 | 309277 |
| 40 | 437047 |
| 41 | 617658 |
| 42 | 872968 |
| 43 | 1233896 |
| 44 | 1744153 |
| 45 | 2465547 |
| 46 | 3485478 |
[1,0,1,2,3,3,5,7,8,11,16,24,32,42,61,82,118,166, 231,322,453,635,892,1253,1767,2487,3505,4936,6959, 9816,13850,19538,27578,38933,54972,77641,109668, 154922,218879,309277,437047,617658,872968,1233896, 1744153,2465547,3485478] |