A229370 - OEIS

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A229370 as a simple table

n	a(n)
1	448
2	19675
3	1067299
4	56939585
5	3043629267
6	162794962814
7	8710922742428
8	465220677212678
9	24888824486410340
10	1329636795738857739
11	71103770288879123298
12	3799851842800067248447
13	203151084678069461627099

[448,19675,1067299,56939585,3043629267, 162794962814,8710922742428,465220677212678, 24888824486410340,1329636795738857739, 71103770288879123298,3799851842800067248447, 203151084678069461627099]