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A145778 as a simple table

n a(n)
1 1
2 1
3 1
4 2
5 2
6 3
7 6
8 10
9 21
10 46
11 106
12 253
13 820
14 2128
15 8527
16 25843
17 122734
18 425169
19 2572337
20 9924088
21 75407076
22 331598798
23 3087553649
24 15467749658
25 179756366268
26 1016119110332
27 14755861942091
28 94597276047265
29 1702584089571489

[1,1,1,2,2,3,6,10,21,46,106,253,820,2128,8527,
 25843,122734,425169,2572337,9924088,75407076,
 331598798,3087553649,15467749658,179756366268,
 1016119110332,14755861942091,94597276047265,
 1702584089571489]

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Last modified December 10 12:10 EST 2023. Contains 367710 sequences. (Running on oeis4.)