A082282 - OEIS

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A082282 as a simple table

n	a(n)
1	2
2	5
3	17
4	71
5	359
6	2161
7	15131
8	121061
9	1089551
10	10895513
11	119850691
12	1438208297
13	18696707863
14	261753910123
15	3926308651849
16	62820938429593
17	1067955953303143
18	19223207159456609
19	365240936029675579

[2,5,17,71,359,2161,15131,121061,1089551,10895513, 119850691,1438208297,18696707863,261753910123, 3926308651849,62820938429593,1067955953303143, 19223207159456609,365240936029675579]