The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 4 | 1 |
| 5 | 1 |
| 6 | 3 |
| 7 | 6 |
| 8 | 11 |
| 9 | 20 |
| 10 | 32 |
| 11 | 48 |
| 12 | 70 |
| 13 | 98 |
| 14 | 132 |
| 15 | 174 |
| 16 | 226 |
| 17 | 287 |
| 18 | 359 |
| 19 | 444 |
| 20 | 542 |
| 21 | 655 |
| 22 | 783 |
| 23 | 928 |
| 24 | 1092 |
| 25 | 1275 |
| 26 | 1479 |
| 27 | 1707 |
| 28 | 1957 |
| 29 | 2231 |
| 30 | 2534 |
| 31 | 2865 |
| 32 | 3225 |
| 33 | 3617 |
| 34 | 4040 |
| 35 | 4497 |
| 36 | 4993 |
| 37 | 5527 |
| 38 | 6098 |
| 39 | 6710 |
| 40 | 7363 |
| 41 | 8062 |
| 42 | 8810 |
| 43 | 9605 |
| 44 | 10447 |
| 45 | 11342 |
| 46 | 12291 |
| 47 | 13295 |
| 48 | 14358 |
| 49 | 15478 |
| 50 | 16658 |
| 51 | 17904 |
[1,1,3,6,11,20,32,48,70,98,132,174,226,287,359, 444,542,655,783,928,1092,1275,1479,1707,1957,2231, 2534,2865,3225,3617,4040,4497,4993,5527,6098,6710, 7363,8062,8810,9605,10447,11342,12291,13295,14358, 15478,16658,17904] |