A076392 - OEIS

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A076392 as a simple table

n	a(n)
1	0
2	1
3	2
4	42
5	61
6	88
7	238
8	254
9	288
10	347
11	575
12	4034
13	9853
14	21798
15	49736
16	108435
17	109003
18	181562
19	1035352
20	1955976
21	6950275
22	30712753
23	41463747
24	45117343
25	112401242
26	116579541

[0,1,2,42,61,88,238,254,288,347,575,4034,9853, 21798,49736,108435,109003,181562,1035352,1955976, 6950275,30712753,41463747,45117343,112401242, 116579541]