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A142873 as a simple table

n a(n)
0 1
1 3
2 12
3 48
4 210
5 947
6 4510
7 22406
8 116506

[1,3,12,48,210,947,4510,22406,116506]

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Last modified March 28 22:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)