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A111136 as a simple table

n a(n)
1 1
2 3
3 8
4 21
5 110
6 343
7 1940
8 6121
9 34778
10 549007
11 1895276
12 26053093
13 191633234
14 625127671
15 3596342744
16 56912633917
17 1013634659958
18 3518365441919
19 48463935654772
20 356525456824901
21 1163040989874294
22 15635375014550515

[1,3,8,21,110,343,1940,6121,34778,549007,1895276,
 26053093,191633234,625127671,3596342744,
 56912633917,1013634659958,3518365441919,
 48463935654772,356525456824901,1163040989874294,
 15635375014550515]

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Last modified August 25 16:17 EDT 2019. Contains 326324 sequences. (Running on oeis4.)