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A007164 as a simple table

n a(n)
1 1
2 2
3 7
4 31
5 167
6 999
7 6495
8 44619
9 319463
10 2356406
11 17775821
12 136405506
13 1060866006
14 8339982193
15 66147792753
16 528559162227
17 4250413757583
18 34368723106860
19 279254390054538
20 2278795583070154
21 18667432144042678
22 153452484745198722

[1,2,7,31,167,999,6495,44619,319463,2356406,
 17775821,136405506,1060866006,8339982193,
 66147792753,528559162227,4250413757583,
 34368723106860,279254390054538,2278795583070154,
 18667432144042678,153452484745198722]

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Last modified January 20 19:53 EST 2020. Contains 331096 sequences. (Running on oeis4.)