A234414 - OEIS

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A234414 as a simple table

n	a(n)
1	106
2	550
3	2848
4	14794
5	76996
6	401332
7	2094334
8	10939294
9	57181342
10	299074768
11	1565010838
12	8192728552
13	42902476216
14	224726079286
15	1177392512218
16	6169767623782
17	32335691922208
18	169492250976178
19	888510183018244

[106,550,2848,14794,76996,401332,2094334,10939294, 57181342,299074768,1565010838,8192728552, 42902476216,224726079286,1177392512218, 6169767623782,32335691922208,169492250976178, 888510183018244]