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A012183 as a simple table

n a(n)
0 1
1 1
2 21
3 1101
4 107209
5 16711481
6 3810146205
7 1195529025861
8 494050576455185
9 260086639760540401
10 169928807728242392485
11 134924876918419856397501
12 127963083862513681084495321

[1,1,21,1101,107209,16711481,3810146205,
 1195529025861,494050576455185,260086639760540401,
 169928807728242392485,134924876918419856397501,
 127963083862513681084495321]

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Last modified March 23 05:36 EDT 2019. Contains 321422 sequences. (Running on oeis4.)