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A277346 as a simple table

n a(n)
0 1
1 1
2 2
3 3
4 8
5 16
6 48
7 119
8 390
9 1070
10 3656
11 10762
12 37834
13 116546
14 417540
15 1330923
16 4836452
17 15823388
18 58130756
19 194168612
20 719541996
21 2444224858
22 9121965276
23 31422225930
24 117959864244
25 411141476444
26 1551101290792
27 5460849893348
28 20689450250926
29 73474839110524

[1,1,2,3,8,16,48,119,390,1070,3656,10762,37834,
 116546,417540,1330923,4836452,15823388,58130756,
 194168612,719541996,2444224858,9121965276,
 31422225930,117959864244,411141476444,
 1551101290792,5460849893348,20689450250926,
 73474839110524]

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Last modified January 18 01:05 EST 2020. Contains 330995 sequences. (Running on oeis4.)