n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 9 |
3 | 34 |
4 | 141 |
5 | 621 |
6 | 2849 |
7 | 13467 |
8 | 65127 |
9 | 320686 |
10 | 1602294 |
11 | 8103087 |
12 | 41397186 |
13 | 213331026 |
14 | 1107604764 |
15 | 5788249329 |
16 | 30422897664 |
17 | 160717169622 |
18 | 852894534042 |
19 | 4544635033164 |
20 | 24305345593290 |
21 | 130423538829518 |
22 | 701994030831654 |
23 | 3788979493701069 |
24 | 20503322609731348 |
[1,3,9,34,141,621,2849,13467,65127,320686,1602294, 8103087,41397186,213331026,1107604764,5788249329, 30422897664,160717169622,852894534042, 4544635033164,24305345593290,130423538829518, 701994030831654,3788979493701069, 20503322609731348] |