A222335 - OEIS

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A222335 as a simple table

n	a(n)
1	6
2	186
3	5766
4	178746
5	5541126
6	171774906
7	5325022086
8	165075684666
9	5117346224646
10	158637732964026
11	4917769721884806
12	152450861378428986
13	4725976702731298566
14	146505277784670255546
15	4541663611324777921926

[6,186,5766,178746,5541126,171774906,5325022086, 165075684666,5117346224646,158637732964026, 4917769721884806,152450861378428986, 4725976702731298566,146505277784670255546, 4541663611324777921926]