A239848 - OEIS

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A239848 as a simple table

n	a(n)
1	7
2	109
3	2221
4	46260
5	874352
6	15039319
7	232886648
8	3315673203
9	44101959522
10	556619827523
11	6695977596256
12	76860374449526
13	842768492337658
14	8843612429559950
15	89035572461799515
16	862379702184879987

[7,109,2221,46260,874352,15039319,232886648, 3315673203,44101959522,556619827523,6695977596256, 76860374449526,842768492337658,8843612429559950, 89035572461799515,862379702184879987]