A186787 - OEIS

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A186787 as a simple table

n	a(n)
1	246
2	29020
3	13066921
4	22495797451
5	147985903265501
6	3720538199779806652
7	357466055151669297136736
8	131253399322834546449506492207

[246,29020,13066921,22495797451,147985903265501, 3720538199779806652,357466055151669297136736, 131253399322834546449506492207]