n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 9 |
3 | 44 |
4 | 236 |
5 | 1336 |
6 | 7862 |
7 | 47608 |
8 | 294720 |
9 | 1856748 |
10 | 11865684 |
11 | 76731572 |
12 | 501176237 |
13 | 3301501694 |
14 | 21909634763 |
15 | 146337236580 |
16 | 982962605577 |
17 | 6635968279354 |
18 | 45001173711683 |
19 | 306406562117884 |
20 | 2093909763907401 |
21 | 14356806252396614 |
22 | 98735015302171955 |
23 | 680906548260420320 |
24 | 4707709357806093085 |
25 | 32625093782844333722 |
26 | 226588405850230665429 |
27 | 1576882804780751603092 |
[1,2,9,44,236,1336,7862,47608,294720,1856748, 11865684,76731572,501176237,3301501694, 21909634763,146337236580,982962605577, 6635968279354,45001173711683,306406562117884, 2093909763907401,14356806252396614, 98735015302171955,680906548260420320, 4707709357806093085,32625093782844333722, 226588405850230665429,1576882804780751603092] |