n | a(n) |
---|---|
3 | 1 |
4 | 9 |
5 | 47 |
6 | 188 |
7 | 643 |
8 | 1993 |
9 | 5798 |
10 | 16193 |
11 | 44068 |
12 | 118013 |
13 | 312974 |
14 | 825277 |
15 | 2169045 |
16 | 5690426 |
17 | 14913861 |
18 | 39066661 |
19 | 102306471 |
20 | 267879086 |
21 | 701364436 |
22 | 1836256726 |
23 | 4807458872 |
24 | 12586185670 |
25 | 32951178868 |
26 | 86267449214 |
27 | 225851287529 |
[1,9,47,188,643,1993,5798,16193,44068,118013, 312974,825277,2169045,5690426,14913861,39066661, 102306471,267879086,701364436,1836256726, 4807458872,12586185670,32951178868,86267449214, 225851287529] |