n | a(n) |
---|---|
1 | 1 |
2 | 11 |
3 | 31 |
4 | 70 |
5 | 251 |
6 | 799 |
7 | 2266 |
8 | 7005 |
9 | 21780 |
10 | 65489 |
11 | 199273 |
12 | 610585 |
13 | 1857468 |
14 | 5653794 |
15 | 17249124 |
16 | 52563162 |
17 | 160123076 |
18 | 488054813 |
19 | 1487412562 |
20 | 4532419434 |
21 | 13812563405 |
22 | 42094180094 |
23 | 128277984857 |
24 | 390920465658 |
25 | 1191319783180 |
26 | 3630484158342 |
[1,11,31,70,251,799,2266,7005,21780,65489,199273, 610585,1857468,5653794,17249124,52563162, 160123076,488054813,1487412562,4532419434, 13812563405,42094180094,128277984857,390920465658, 1191319783180,3630484158342] |