n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 25 |
4 | 188 |
5 | 1671 |
6 | 17190 |
7 | 201125 |
8 | 2638984 |
9 | 38390179 |
10 | 613363466 |
11 | 10678267425 |
12 | 201215691660 |
13 | 4080450217247 |
14 | 88609322165902 |
15 | 2051573162708125 |
16 | 50450534991347216 |
17 | 1313219083705400475 |
18 | 36072797094375866898 |
19 | 1042811362801447763225 |
20 | 31647646914322017237652 |
21 | 1006032342980535954429463 |
[1,4,25,188,1671,17190,201125,2638984,38390179, 613363466,10678267425,201215691660,4080450217247, 88609322165902,2051573162708125,50450534991347216, 1313219083705400475,36072797094375866898, 1042811362801447763225,31647646914322017237652, 1006032342980535954429463] |