A147984 - OEIS

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A147984 as a simple table

n	a(n)
0	1
1	2431
2	4061871
3	7528988476
4	15467641899285
5	34155922905682979
6	79397199549271412737
7	191739533381111401455478
8	476872353039366288373555323

[1,2431,4061871,7528988476,15467641899285, 34155922905682979,79397199549271412737, 191739533381111401455478, 476872353039366288373555323]