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A215002 as a simple table

n a(n)
0 1
1 2
2 10
3 60
4 398
5 2764
6 19796
7 144536
8 1070294
9 8007052
10 60380940
11 458185992
12 3494554380
13 26764583096
14 205711091880
15 1585822364592
16 12256625999718
17 94942581080204
18 736895626109148
19 5729374337686696
20 44615143884080996
21 347905737091032552
22 2716349710039969688

[1,2,10,60,398,2764,19796,144536,1070294,8007052,
 60380940,458185992,3494554380,26764583096,
 205711091880,1585822364592,12256625999718,
 94942581080204,736895626109148,5729374337686696,
 44615143884080996,347905737091032552,
 2716349710039969688]

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Last modified January 21 16:02 EST 2021. Contains 340352 sequences. (Running on oeis4.)