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A124640 as a simple table

n a(n)
0 1
1 3
2 11
3 33
4 98
5 270
6 736
7 1932
8 5009
9 12727
10 31977
11 79307
12 194947

[1,3,11,33,98,270,736,1932,5009,12727,31977,79307,
 194947]

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Last modified January 21 03:58 EST 2022. Contains 350473 sequences. (Running on oeis4.)