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A187198 as a simple table

n a(n)
-1 1
0 5
1 14
2 36
3 85
4 180
5 360
6 684
7 1246
8 2196
9 3754
10 6264
11 10226
12 16380
13 25804
14 40032
15 61275
16 92628
17 138452
18 204804
19 300040
20 435672
21 627356
22 896400
23 1271525
24 1791324
25 2507426
26 3488472
27 4825531
28 6638688
29 9085888
30 12373992
31 16772908
32 22633812

[1,5,14,36,85,180,360,684,1246,2196,3754,6264,
 10226,16380,25804,40032,61275,92628,138452,204804,
 300040,435672,627356,896400,1271525,1791324,
 2507426,3488472,4825531,6638688,9085888,12373992,
 16772908,22633812]

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Last modified October 20 22:44 EDT 2019. Contains 328291 sequences. (Running on oeis4.)