A113053 - OEIS

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A113053 as a simple table

n	a(n)
1	7
2	71
3	2131
4	191791
5	5753731
6	575373101
7	17261193031
8	517835790931
9	82853726548961
10	28998804292136351
11	16239330403596356561
12	4384619208971016271471
13	526154305076521952576521

[7,71,2131,191791,5753731,575373101,17261193031, 517835790931,82853726548961,28998804292136351, 16239330403596356561,4384619208971016271471, 526154305076521952576521]