A275406 - OEIS

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A275406 as a simple table

n	a(n)
1	48
2	260
3	2645
4	27373
5	283169
6	2940064
7	30551417
8	317215507
9	3295389070
10	34229946538
11	355557100121
12	3693307572143
13	38363725298482
14	398498904233689
15	4139351037446210
16	42997002237357820
17	446625826073952314

[48,260,2645,27373,283169,2940064,30551417, 317215507,3295389070,34229946538,355557100121, 3693307572143,38363725298482,398498904233689, 4139351037446210,42997002237357820, 446625826073952314]