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A148336 as a simple table

n a(n)
0 1
1 1
2 2
3 5
4 14
5 44
6 152
7 538
8 1995
9 7662
10 29940
11 120398
12 491459
13 2038747
14 8581283
15 36510595
16 157045874
17 681735158
18 2982964821
19 13151583858
20 58359139202
21 260520699938
22 1169379642893
23 5274592297251
24 23900749201570
25 108751720395298
26 496735253829031
27 2276991119469184
28 10471775432100043

[1,1,2,5,14,44,152,538,1995,7662,29940,120398,
 491459,2038747,8581283,36510595,157045874,
 681735158,2982964821,13151583858,58359139202,
 260520699938,1169379642893,5274592297251,
 23900749201570,108751720395298,496735253829031,
 2276991119469184,10471775432100043]

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Last modified June 29 14:46 EDT 2022. Contains 354913 sequences. (Running on oeis4.)