A244443 - OEIS

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A244443 as a simple table

n	a(n)
1	2
2	6
3	15
4	77
5	185
6	187
7	475
8	3820
9	4043
10	4090
11	11231
12	30589
13	57023
14	126815
15	131055
16	983032
17	983033
18	2617339
19	4046839
20	11534206
21	11534207
22	65011702
23	66777087
24	368279551
25	469745405
26	973061887
27	1064828671

[2,6,15,77,185,187,475,3820,4043,4090,11231,30589, 57023,126815,131055,983032,983033,2617339,4046839, 11534206,11534207,65011702,66777087,368279551, 469745405,973061887,1064828671]