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A267988 as a simple table

n a(n)
1 1
2 4
3 21
4 189
5 1941
6 28032
7 448157
8 8951313
9 194183520
10 4923018003
11 134463192215

[1,4,21,189,1941,28032,448157,8951313,194183520,
 4923018003,134463192215]

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Last modified April 25 13:27 EDT 2024. Contains 371971 sequences. (Running on oeis4.)