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A047653 as a simple table

n a(n)
0 1
1 2
2 4
3 10
4 26
5 76
6 236
7 760
8 2522
9 8556
10 29504
11 103130
12 364548
13 1300820
14 4679472
15 16952162
16 61790442
17 226451036
18 833918840
19 3084255128
20 11451630044
21 42669225172
22 159497648600
23 597950875256
24 2247724108772
25 8470205600640
26 31991616634296
27 121086752349064

[1,2,4,10,26,76,236,760,2522,8556,29504,103130,
 364548,1300820,4679472,16952162,61790442,
 226451036,833918840,3084255128,11451630044,
 42669225172,159497648600,597950875256,
 2247724108772,8470205600640,31991616634296,
 121086752349064]

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Last modified April 19 23:15 EDT 2024. Contains 371798 sequences. (Running on oeis4.)