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A260006 as a simple table

n a(n)
0 0
1 3
2 12
3 35
4 90
5 217
6 504
7 1143
8 2550
9 5621
10 12276
11 26611
12 57330
13 122865
14 262128
15 557039
16 1179630
17 2490349
18 5242860
19 11010027
20 23068650
21 48234473
22 100663272
23 209715175
24 436207590
25 905969637
26 1879048164
27 3892314083
28 8053063650
29 16642998241
30 34359738336

[0,3,12,35,90,217,504,1143,2550,5621,12276,26611,
 57330,122865,262128,557039,1179630,2490349,
 5242860,11010027,23068650,48234473,100663272,
 209715175,436207590,905969637,1879048164,
 3892314083,8053063650,16642998241,34359738336]

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Last modified August 30 13:06 EDT 2024. Contains 375543 sequences. (Running on oeis4.)