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A006894 as a simple table

n a(n)
1 1
2 2
3 4
4 11
5 67
6 2279
7 2598061
8 3374961778892
9 5695183504492614029263279
10 16217557574922386301420536972254869595782763547561
11 131504586847961235687181874578063117114329409897615188504091716162522225834932122128288032336298142 

[1,2,4,11,67,2279,2598061,3374961778892,
 5695183504492614029263279,
 16217557574922386301420536972254869595782763547561\
 ,
 13150458684796123568718187457806311711432940989761\
 5188504091716162522225834932122128288032336298142]

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Last modified April 25 01:06 EDT 2024. Contains 371964 sequences. (Running on oeis4.)