n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 27 |
4 | 119 |
5 | 532 |
6 | 2493 |
7 | 11751 |
8 | 56526 |
9 | 272852 |
10 | 1330410 |
11 | 6502103 |
12 | 31952536 |
13 | 157280769 |
14 | 776671738 |
15 | 3839959233 |
16 | 19022898390 |
17 | 94323668554 |
18 | 468299922839 |
19 | 2326622294614 |
20 | 11569292283782 |
21 | 57559421076093 |
22 | 286544762335029 |
23 | 1427071552401897 |
24 | 7110370388498281 |
25 | 35438671133831670 |
26 | 176687791134419279 |
[1,2,7,27,119,532,2493,11751,56526,272852,1330410, 6502103,31952536,157280769,776671738,3839959233, 19022898390,94323668554,468299922839, 2326622294614,11569292283782,57559421076093, 286544762335029,1427071552401897,7110370388498281, 35438671133831670,176687791134419279] |