n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 10 |
4 | 29 |
5 | 72 |
6 | 200 |
7 | 510 |
8 | 1364 |
9 | 3546 |
10 | 9348 |
11 | 24400 |
12 | 64090 |
13 | 167562 |
14 | 439200 |
15 | 1149360 |
16 | 3010349 |
17 | 7879832 |
18 | 20633304 |
19 | 54014950 |
20 | 141422328 |
21 | 370239300 |
22 | 969323000 |
23 | 2537696160 |
24 | 6643839400 |
25 | 17393731933 |
26 | 45537549048 |
27 | 119218684970 |
28 | 312119004990 |
29 | 817137724392 |
30 | 2139295489200 |
31 | 5600747143950 |
[1,1,4,10,29,72,200,510,1364,3546,9348,24400, 64090,167562,439200,1149360,3010349,7879832, 20633304,54014950,141422328,370239300,969323000, 2537696160,6643839400,17393731933,45537549048, 119218684970,312119004990,817137724392, 2139295489200,5600747143950] |