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A196804 as a simple table

n a(n)
1 1
2 3
3 16
4 37
5 120
6 420
7 1468
8 4801
9 15885
10 53128
11 178165
12 594582
13 1983454
14 6622194
15 22119691
16 73864009
17 246623786
18 823483995
19 2749775102
20 9181948002
21 30659615818
22 102376096183
23 341847401583
24 1141474348346
25 3811532000911
26 12727199593820

[1,3,16,37,120,420,1468,4801,15885,53128,178165,
 594582,1983454,6622194,22119691,73864009,
 246623786,823483995,2749775102,9181948002,
 30659615818,102376096183,341847401583,
 1141474348346,3811532000911,12727199593820]

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Last modified January 27 21:49 EST 2023. Contains 359849 sequences. (Running on oeis4.)