n | a(n) |
---|---|
1 | 0 |
2 | 4 |
3 | 12 |
4 | 28 |
5 | 80 |
6 | 52 |
7 | 203 |
8 | 524 |
9 | 903 |
10 | 2184 |
11 | 3960 |
12 | 9628 |
13 | 20735 |
14 | 41619 |
15 | 93392 |
16 | 194732 |
17 | 425901 |
18 | 908791 |
19 | 1923408 |
20 | 4177488 |
21 | 8887289 |
22 | 19098160 |
23 | 40895771 |
24 | 87444572 |
25 | 187934955 |
26 | 401853599 |
27 | 861531618 |
28 | 1846051011 |
29 | 3953574901 |
30 | 8476042452 |
31 | 18151661911 |
32 | 38898045292 |
[0,4,12,28,80,52,203,524,903,2184,3960,9628,20735, 41619,93392,194732,425901,908791,1923408,4177488, 8887289,19098160,40895771,87444572,187934955, 401853599,861531618,1846051011,3953574901, 8476042452,18151661911,38898045292] |