n | a(n) |
---|---|
1 | 2 |
2 | 2 |
3 | 3 |
4 | 7 |
5 | 16 |
6 | 41 |
7 | 110 |
8 | 304 |
9 | 858 |
10 | 2474 |
11 | 7234 |
12 | 21418 |
13 | 64057 |
14 | 193277 |
15 | 587531 |
16 | 1797817 |
17 | 5532916 |
18 | 17115442 |
19 | 53186682 |
20 | 165958893 |
21 | 519764706 |
22 | 1633331926 |
23 | 5148420607 |
24 | 16273962742 |
25 | 51574291758 |
26 | 163834983761 |
27 | 521597902077 |
28 | 1663993969029 |
29 | 5318540288800 |
30 | 17029516243797 |
[2,2,3,7,16,41,110,304,858,2474,7234,21418,64057, 193277,587531,1797817,5532916,17115442,53186682, 165958893,519764706,1633331926,5148420607, 16273962742,51574291758,163834983761,521597902077, 1663993969029,5318540288800,17029516243797] |