n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 14 |
4 | 20 |
5 | 50 |
6 | 112 |
7 | 190 |
8 | 328 |
9 | 666 |
10 | 1340 |
11 | 2038 |
12 | 3740 |
13 | 5954 |
14 | 10792 |
15 | 19542 |
16 | 30048 |
17 | 48290 |
18 | 80164 |
19 | 124694 |
20 | 204484 |
21 | 347610 |
22 | 515184 |
23 | 810750 |
24 | 1240296 |
25 | 1932722 |
26 | 2887820 |
27 | 4557838 |
28 | 7126652 |
29 | 10463330 |
30 | 15768168 |
31 | 23499934 |
[1,2,4,14,20,50,112,190,328,666,1340,2038,3740, 5954,10792,19542,30048,48290,80164,124694,204484, 347610,515184,810750,1240296,1932722,2887820, 4557838,7126652,10463330,15768168,23499934] |