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A321719 as a simple table

n a(n)
0 1
1 1
2 3
3 7
4 28
5 121
6 746
7 5041
8 40608
9 362936
10 3635017
11 39916801
12 479206146
13 6227020801
14 87187426839
15 1307674521272
16 20923334906117
17 355687428096001
18 6402415241245577
19 121645100408832001
20 2432905938909013343
21 51090942176372298027
22 1124001180562929946213

[1,1,3,7,28,121,746,5041,40608,362936,3635017,
 39916801,479206146,6227020801,87187426839,
 1307674521272,20923334906117,355687428096001,
 6402415241245577,121645100408832001,
 2432905938909013343,51090942176372298027,
 1124001180562929946213]

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Last modified April 23 22:36 EDT 2024. Contains 371917 sequences. (Running on oeis4.)