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A322201 as a simple table

n a(n)
0 0
1 2
2 10
3 26
4 90
5 262
6 994
7 3446
8 13050
9 48698
10 185310
11 705454
12 2706354
13 10400626
14 40123534
15 155118406
16 601106490
17 2333606254
18 9075235522
19 35345263838
20 137846899790
21 538257884918
22 2104100374694
23 8233430727646
24 32247609134418
25 126410606439062
26 495918553749434
27 1946939425794206
28 7648690681007998
29 30067266499541098
30 118264581875657214
31 465428353255261150

[0,2,10,26,90,262,994,3446,13050,48698,185310,
 705454,2706354,10400626,40123534,155118406,
 601106490,2333606254,9075235522,35345263838,
 137846899790,538257884918,2104100374694,
 8233430727646,32247609134418,126410606439062,
 495918553749434,1946939425794206,7648690681007998,
 30067266499541098,118264581875657214,
 465428353255261150]

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Last modified August 10 02:28 EDT 2020. Contains 336367 sequences. (Running on oeis4.)