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n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 7 |
3 | 25 |
4 | 73 |
5 | 236 |
6 | 688 |
7 | 1994 |
8 | 5573 |
9 | 15272 |
10 | 40896 |
11 | 107526 |
12 | 277999 |
13 | 707209 |
14 | 1774067 |
15 | 4390665 |
16 | 10734216 |
17 | 25941541 |
18 | 62022609 |
19 | 146793160 |
20 | 344129900 |
21 | 799517074 |
22 | 1841734224 |
23 | 4208327222 |
24 | 9542121050 |
25 | 21477834062 |
26 | 48005313446 |
27 | 106579556936 |
28 | 235107392079 |
29 | 515441826521 |
30 | 1123360284127 |
31 | 2434346065621 |
[1,1,7,25,73,236,688,1994,5573,15272,40896,107526, 277999,707209,1774067,4390665,10734216,25941541, 62022609,146793160,344129900,799517074,1841734224, 4208327222,9542121050,21477834062,48005313446, 106579556936,235107392079,515441826521, 1123360284127,2434346065621] |