n | a(n) |
---|---|
21 | 21 |
22 | 150 |
23 | 688 |
24 | 2561 |
25 | 8253 |
26 | 23930 |
27 | 64030 |
28 | 160539 |
29 | 381379 |
30 | 865676 |
31 | 1889308 |
32 | 3984311 |
33 | 8151834 |
34 | 16234161 |
35 | 31554397 |
36 | 59999259 |
37 | 111824744 |
38 | 204629354 |
39 | 368190175 |
40 | 652238928 |
41 | 1138836325 |
42 | 1961870558 |
43 | 3337496363 |
44 | 5611246209 |
45 | 9330350788 |
46 | 15353900381 |
47 | 25019429935 |
[21,150,688,2561,8253,23930,64030,160539,381379, 865676,1889308,3984311,8151834,16234161,31554397, 59999259,111824744,204629354,368190175,652238928, 1138836325,1961870558,3337496363,5611246209, 9330350788,15353900381,25019429935] |