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A073156 as a simple table

n a(n)
0 1
1 2
2 9
3 36
4 156
5 698
6 3210
7 15080
8 72060
9 349184
10 1711869
11 8475494
12 42318018
13 212843826
14 1077391794
15 5484472880
16 28058940086
17 144195777552
18 744017466318
19 3852968380624
20 20019113126120
21 104329129258596
22 545214946753377

[1,2,9,36,156,698,3210,15080,72060,349184,1711869,
 8475494,42318018,212843826,1077391794,5484472880,
 28058940086,144195777552,744017466318,
 3852968380624,20019113126120,104329129258596,
 545214946753377]

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Last modified April 25 05:18 EDT 2024. Contains 371964 sequences. (Running on oeis4.)