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A304941 as a simple table

n a(n)
0 1
1 6
2 18
3 68
4 246
5 948
6 3572
7 13896
8 53286
9 208452
10 807132
11 3169080
12 12346300
13 48602760
14 190150440
15 750018448
16 2943363078
17 11627329764
18 45736940364
19 180897649368
20 712881236052
21 2822389182104
22 11138924119512
23 44137230865392
24 174405194802524
25 691557285091176

[1,6,18,68,246,948,3572,13896,53286,208452,807132,
 3169080,12346300,48602760,190150440,750018448,
 2943363078,11627329764,45736940364,180897649368,
 712881236052,2822389182104,11138924119512,
 44137230865392,174405194802524,691557285091176]

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Last modified April 23 13:41 EDT 2024. Contains 371914 sequences. (Running on oeis4.)