A255733 - OEIS

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A255733 as a simple table

n	a(n)
1	3
2	4
3	6
4	12
5	26
6	96
7	137
8	946
9	1053
10	2943
11	6874
12	17386
13	39182
14	60504
15	114254
16	167786
17	393216
18	497134
19	645354
20	5250086
21	27914146
22	448005874
23	505235234
24	708458286
25	3238952914
26	71258123714

[3,4,6,12,26,96,137,946,1053,2943,6874,17386, 39182,60504,114254,167786,393216,497134,645354, 5250086,27914146,448005874,505235234,708458286, 3238952914,71258123714]