A220544 - OEIS

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A220544 as a simple table

n	a(n)
1	8
2	176
3	3778
4	64968
5	1047584
6	16776012
7	268433898
8	4294965416
9	68719474278
10	1099511624848
11	17592186040838
12	281474976706320
13	4503599627365360
14	72057594037922000
15	1152921504606840240
16	18446744073709544080

[8,176,3778,64968,1047584,16776012,268433898, 4294965416,68719474278,1099511624848, 17592186040838,281474976706320,4503599627365360, 72057594037922000,1152921504606840240, 18446744073709544080]

[8,176,3778,64968,1047584,16776012,268433898,
 4294965416,68719474278,1099511624848,
 17592186040838,281474976706320,4503599627365360,
 72057594037922000,1152921504606840240,
 18446744073709544080]