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A055407 as a simple table

n a(n)
0 1
1 9
2 171
3 1420
4 8262
5 33044
6 111155
7 312913
8 793049
9 1807754
10 3834490
11 7601982
12 14333819
13 25683401
14 44367189
15 73913316
16 119544010
17 187884853
18 288597817
19 433331391
20 638511294
21 923461382
22 1314459790
23 1842974369
24 2550288371

[1,9,171,1420,8262,33044,111155,312913,793049,
 1807754,3834490,7601982,14333819,25683401,
 44367189,73913316,119544010,187884853,288597817,
 433331391,638511294,923461382,1314459790,
 1842974369,2550288371]

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Last modified April 23 16:40 EDT 2024. Contains 371916 sequences. (Running on oeis4.)