n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 4 |
4 | 11 |
5 | 28 |
6 | 77 |
7 | 228 |
8 | 692 |
9 | 2160 |
10 | 6879 |
11 | 22528 |
12 | 75430 |
13 | 254868 |
14 | 875874 |
15 | 3055683 |
16 | 10765198 |
17 | 38352888 |
18 | 137848862 |
19 | 499998280 |
20 | 1829241456 |
21 | 6733795838 |
22 | 24970420936 |
23 | 93195229701 |
24 | 349695790406 |
25 | 1319823920870 |
26 | 5005256608864 |
27 | 19072570922847 |
28 | 73017219637011 |
29 | 280622498877470 |
30 | 1082966473242941 |
31 | 4195021392215434 |
[1,1,2,4,11,28,77,228,692,2160,6879,22528,75430, 254868,875874,3055683,10765198,38352888,137848862, 499998280,1829241456,6733795838,24970420936, 93195229701,349695790406,1319823920870, 5005256608864,19072570922847,73017219637011, 280622498877470,1082966473242941,4195021392215434] |