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A049154 as a simple table

n a(n)
0 1
1 1
2 3
3 9
4 31
5 113
6 431
7 1699
8 6869
9 28337
10 118827
11 505077
12 2171403
13 9426025
14 41260639
15 181923359
16 807230625
17 3601980785
18 16152883683
19 72760511753
20 329066924255
21 1493649861729
22 6802136334927
23 31070513911731

[1,1,3,9,31,113,431,1699,6869,28337,118827,505077,
 2171403,9426025,41260639,181923359,807230625,
 3601980785,16152883683,72760511753,329066924255,
 1493649861729,6802136334927,31070513911731]

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Last modified December 8 23:37 EST 2023. Contains 367681 sequences. (Running on oeis4.)