n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 10 |
3 | 24 |
4 | 62 |
5 | 156 |
6 | 391 |
7 | 987 |
8 | 2484 |
9 | 6252 |
10 | 15744 |
11 | 39636 |
12 | 99788 |
13 | 251237 |
14 | 632525 |
15 | 1592480 |
16 | 4009326 |
17 | 10094104 |
18 | 25413498 |
19 | 63982496 |
20 | 161086011 |
21 | 405559431 |
22 | 1021059816 |
23 | 2570679048 |
24 | 6472089792 |
25 | 16294506424 |
26 | 41023988824 |
27 | 103284359545 |
28 | 260034658537 |
29 | 654678248796 |
[1,4,10,24,62,156,391,987,2484,6252,15744,39636, 99788,251237,632525,1592480,4009326,10094104, 25413498,63982496,161086011,405559431,1021059816, 2570679048,6472089792,16294506424,41023988824, 103284359545,260034658537,654678248796] |