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A001470 as a simple table

n a(n)
0 1
1 1
2 1
3 3
4 9
5 21
6 81
7 351
8 1233
9 5769
10 31041
11 142011
12 776601
13 4874013
14 27027729
15 168369111
16 1191911841
17 7678566801
18 53474964993
19 418199988339
20 3044269834281
21 23364756531621
22 199008751634001
23 1605461415071823

[1,1,1,3,9,21,81,351,1233,5769,31041,142011,
 776601,4874013,27027729,168369111,1191911841,
 7678566801,53474964993,418199988339,3044269834281,
 23364756531621,199008751634001,1605461415071823]

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Last modified April 16 14:17 EDT 2024. Contains 371740 sequences. (Running on oeis4.)