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A111414 as a simple table

n a(n)
0 2
1 6
2 10
3 40
4 80
5 250
6 510
7 1890
8 4270
9 13738
10 30630
11 101960
12 234864
13 705046
14 1580578
15 5136840
16 11991928
17 36095322
18 82990606
19 255579576
20 595920680
21 1719038038
22 3926998938
23 11665004238
24 26978093154
25 75938910058
26 172678519950
27 489262646480
28 1114189211016

[2,6,10,40,80,250,510,1890,4270,13738,30630,
 101960,234864,705046,1580578,5136840,11991928,
 36095322,82990606,255579576,595920680,1719038038,
 3926998938,11665004238,26978093154,75938910058,
 172678519950,489262646480,1114189211016]

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Last modified April 23 18:16 EDT 2024. Contains 371916 sequences. (Running on oeis4.)