A180425 - OEIS

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A180425 as a simple table

n	a(n)
1	2
2	42
3	505
4	5586
5	59308
6	616995
7	6347878
8	64875490
9	660104281
10	6695709182
11	67762820595
12	684596704482
13	6907026402474
14	69611115440126
15	700946070114283
16	7053023642205904

[2,42,505,5586,59308,616995,6347878,64875490, 660104281,6695709182,67762820595,684596704482, 6907026402474,69611115440126,700946070114283, 7053023642205904]