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A001424 as a simple table

na(n)
01
11
27
31734
489521056
51241763995193675
67162795001695681351632672
725488450150907292192918677242007992558
877841043345568973636021269757801814299054870565039692

[1,1,7,1734,89521056,1241763995193675,
 7162795001695681351632672,
 25488450150907292192918677242007992558,
 77841043345568973636021269757801814299054870565039\
 692]