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A127679 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 2
6 4
7 6
8 15
9 35
10 119
11 221
12 1703
13 31571
14 444163
15 62571693
16 16130221953
17 31653658032799
18 1139752929797333269
19 190765682365696256860989
20 13391304481955883169111997465697

[1,1,1,1,2,4,6,15,35,119,221,1703,31571,444163,
 62571693,16130221953,31653658032799,
 1139752929797333269,190765682365696256860989,
 13391304481955883169111997465697]

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Last modified April 23 16:40 EDT 2024. Contains 371916 sequences. (Running on oeis4.)