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A194646 as a simple table

n a(n)
1 80
2 276
3 1082
4 4460
5 18890
6 81606
7 358564
8 1599820
9 7238864
10 33175486
11 153802520
12 720390254
13 3404944506
14 16221905696
15 77820675992
16 375564803020
17 1821845982082
18 8876847931644
19 43416046650306
20 213033152875350
21 1048198981050148
22 5169676077206180

[80,276,1082,4460,18890,81606,358564,1599820,
 7238864,33175486,153802520,720390254,3404944506,
 16221905696,77820675992,375564803020,
 1821845982082,8876847931644,43416046650306,
 213033152875350,1048198981050148,5169676077206180]

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Last modified January 28 17:48 EST 2022. Contains 350657 sequences. (Running on oeis4.)