A041718 - OEIS

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A041718 as a simple table

n	a(n)
0	19
1	39
2	292
3	915
4	2122
5	5159
6	33076
7	402071
8	435147
9	2142659
10	2577806
11	4720465
12	7298271
13	26615278
14	113759383
15	2188043555
16	8865933603
17	28785844364
18	37651777967
19	66437622331
20	104089400298
21	482795223523

[19,39,292,915,2122,5159,33076,402071,435147, 2142659,2577806,4720465,7298271,26615278, 113759383,2188043555,8865933603,28785844364, 37651777967,66437622331,104089400298,482795223523]