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A118892 as a simple table

n a(n)
0 0
1 0
2 0
3 0
4 1
5 4
6 12
7 30
8 70
9 156
10 339
11 722
12 1515
13 3140
14 6444
15 13116
16 26513
17 53280
18 106530
19 212062
20 420503
21 830964
22 1637055
23 3216240
24 6303099
25 12324816
26 24049953
27 46841550
28 91074760
29 176796340
30 342696000
31 663363750
32 1282457260
33 2476394580

[0,0,0,0,1,4,12,30,70,156,339,722,1515,3140,6444,
 13116,26513,53280,106530,212062,420503,830964,
 1637055,3216240,6303099,12324816,24049953,
 46841550,91074760,176796340,342696000,663363750,
 1282457260,2476394580]

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Last modified April 16 03:22 EDT 2024. Contains 371696 sequences. (Running on oeis4.)