A257194 - OEIS

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A257194 as a simple table

n	a(n)
1	639228
2	4507765
3	65770496
4	895883809
5	13043226591
6	209357338632
7	3282787941884
8	50799369634289
9	798667497496483
10	12559203813701135
11	196742803596018870
12	3086984411546130737
13	48479953018885963308

[639228,4507765,65770496,895883809,13043226591, 209357338632,3282787941884,50799369634289, 798667497496483,12559203813701135, 196742803596018870,3086984411546130737, 48479953018885963308]