n | a(n) |
---|---|
1 | 4 |
2 | 6 |
3 | 18 |
4 | 36 |
5 | 76 |
6 | 147 |
7 | 285 |
8 | 532 |
9 | 984 |
10 | 1795 |
11 | 3237 |
12 | 5793 |
13 | 10293 |
14 | 18168 |
15 | 31887 |
16 | 55709 |
17 | 96926 |
18 | 167972 |
19 | 290136 |
20 | 499615 |
21 | 857947 |
22 | 1469576 |
23 | 2511369 |
24 | 4282663 |
25 | 7289002 |
26 | 12383250 |
27 | 21002336 |
28 | 35564859 |
29 | 60136917 |
30 | 101547211 |
31 | 171253466 |
32 | 288461204 |
[4,6,18,36,76,147,285,532,984,1795,3237,5793, 10293,18168,31887,55709,96926,167972,290136, 499615,857947,1469576,2511369,4282663,7289002, 12383250,21002336,35564859,60136917,101547211, 171253466,288461204] |