A152279 - OEIS

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A152279 as a simple table

n	a(n)
1	1
2	8
3	69
4	574
5	5520
6	52155
7	502179
8	4882568
9	47709672
10	468269438
11	4610668567
12	45510662200
13	450072137956
14	4457717637910

[1,8,69,574,5520,52155,502179,4882568,47709672, 468269438,4610668567,45510662200,450072137956, 4457717637910]