n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 10 |
3 | 50 |
4 | 570 |
5 | 4450 |
6 | 56202 |
7 | 501970 |
8 | 6676410 |
9 | 63799490 |
10 | 875391370 |
11 | 8715058802 |
12 | 122088479930 |
13 | 1249437863970 |
14 | 17764858122250 |
15 | 185445650940690 |
16 | 2666213981716282 |
17 | 28252030821781890 |
18 | 409717783914784010 |
[1,1,10,50,570,4450,56202,501970,6676410,63799490, 875391370,8715058802,122088479930,1249437863970, 17764858122250,185445650940690,2666213981716282, 28252030821781890,409717783914784010] |