n | a(n) |
---|---|
1 | 2 |
2 | 16 |
3 | 84 |
4 | 870 |
5 | 11196 |
6 | 205258 |
7 | 5888458 |
8 | 243318702 |
9 | 13997746826 |
10 | 1221755612002 |
11 | 156218303323950 |
12 | 28414320426633740 |
13 | 7652673923813342076 |
14 | 3016400502880224884497 |
15 | 1720903600232362236817474 |
[2,16,84,870,11196,205258,5888458,243318702, 13997746826,1221755612002,156218303323950, 28414320426633740,7652673923813342076, 3016400502880224884497,1720903600232362236817474] |