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A189239 as a simple table

n a(n)
0 1
1 1
2 3
3 13
4 77
5 521
6 4237
7 38879
8 402537
9 4605697
10 57796601
11 787755255
12 11583272461
13 182651526513
14 3072748617317
15 54914056549231
16 1038486405418449
17 20713226786502529
18 434426374539131761
19 9555736871169618407
20 219912659890141260661
21 5283756963089094382705

[1,1,3,13,77,521,4237,38879,402537,4605697,
 57796601,787755255,11583272461,182651526513,
 3072748617317,54914056549231,1038486405418449,
 20713226786502529,434426374539131761,
 9555736871169618407,219912659890141260661,
 5283756963089094382705]

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Last modified August 29 11:13 EDT 2024. Contains 375512 sequences. (Running on oeis4.)