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A149477 as a simple table

n a(n)
0 1
1 1
2 4
3 13
4 57
5 214
6 979
7 4092
8 19118
9 83810
10 397074
11 1792264
12 8569134
13 39449523
14 189833114
15 886149501
16 4284798960
17 20208047001
18 98076614702
19 466207454479
20 2269386827433
21 10854652323409
22 52966000595103
23 254608932972014
24 1244890116366611
25 6008783649970492
26 29429687121612288
27 142535485722942391

[1,1,4,13,57,214,979,4092,19118,83810,397074,
 1792264,8569134,39449523,189833114,886149501,
 4284798960,20208047001,98076614702,466207454479,
 2269386827433,10854652323409,52966000595103,
 254608932972014,1244890116366611,6008783649970492,
 29429687121612288,142535485722942391]

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Last modified June 15 05:55 EDT 2024. Contains 373402 sequences. (Running on oeis4.)