The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 7 |
| 2 | 41 |
| 3 | 190 |
| 4 | 678 |
| 5 | 2006 |
| 6 | 5130 |
| 7 | 11680 |
| 8 | 24224 |
| 9 | 46576 |
| 10 | 84148 |
| 11 | 144346 |
| 12 | 237010 |
| 13 | 374898 |
| 14 | 574214 |
| 15 | 855180 |
| 16 | 1242652 |
| 17 | 1766780 |
| 18 | 2463712 |
| 19 | 3376342 |
| 20 | 4555102 |
| 21 | 6058798 |
| 22 | 7955490 |
| 23 | 10323416 |
| 24 | 13251960 |
| 25 | 16842664 |
| 26 | 21210284 |
| 27 | 26483890 |
| 28 | 32808010 |
| 29 | 40343818 |
| 30 | 49270366 |
| 31 | 59785860 |
| 32 | 72108980 |
[7,41,190,678,2006,5130,11680,24224,46576,84148, 144346,237010,374898,574214,855180,1242652, 1766780,2463712,3376342,4555102,6058798,7955490, 10323416,13251960,16842664,21210284,26483890, 32808010,40343818,49270366,59785860,72108980] |