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A053809 as a simple table

n a(n)
0 1
1 6
2 21
3 57
4 133
5 281
6 554
7 1039
8 1878
9 3302
10 5686
11 9638
12 16143
13 26796
14 44179
15 72471
16 118435
17 193015
18 313920
19 509805
20 827036
21 1340636
22 2171996
23 3517532
24 5695053
25 9218786
26 14920769
27 24147269
28 39076593
29 63233317
30 102320326

[1,6,21,57,133,281,554,1039,1878,3302,5686,9638,
 16143,26796,44179,72471,118435,193015,313920,
 509805,827036,1340636,2171996,3517532,5695053,
 9218786,14920769,24147269,39076593,63233317,
 102320326]

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Last modified September 18 17:23 EDT 2024. Contains 376002 sequences. (Running on oeis4.)