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A301978 as a simple table

n a(n)
0 1
1 1
2 6
3 16
4 51
5 127
6 367
7 897
8 2342
9 5662
10 13894
11 32656
12 77076
13 176586
14 403526
15 904140
16 2013267
17 4418167
18 9628682
19 20741434
20 44362988
21 93984842
22 197731390
23 412619250
24 855408327
25 1760687593
26 3601827236
27 7321181534
28 14796204874
29 29730215150
30 59419375058

[1,1,6,16,51,127,367,897,2342,5662,13894,32656,
 77076,176586,403526,904140,2013267,4418167,
 9628682,20741434,44362988,93984842,197731390,
 412619250,855408327,1760687593,3601827236,
 7321181534,14796204874,29730215150,59419375058]

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Last modified April 25 10:43 EDT 2024. Contains 371967 sequences. (Running on oeis4.)