n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 26 |
4 | 95 |
5 | 340 |
6 | 1193 |
7 | 4116 |
8 | 14001 |
9 | 47064 |
10 | 156629 |
11 | 516844 |
12 | 1693073 |
13 | 5511218 |
14 | 17841247 |
15 | 57477542 |
16 | 184377699 |
17 | 589195584 |
18 | 1876395357 |
19 | 5957318820 |
20 | 18861068265 |
21 | 59563612974 |
22 | 187668462027 |
23 | 590039959434 |
24 | 1851508693479 |
25 | 5799494052414 |
26 | 18135645594003 |
[1,2,7,26,95,340,1193,4116,14001,47064,156629, 516844,1693073,5511218,17841247,57477542, 184377699,589195584,1876395357,5957318820, 18861068265,59563612974,187668462027,590039959434, 1851508693479,5799494052414,18135645594003] |