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A000300 as a simple table

n a(n)
4 1
5 4
6 14
7 44
8 133
9 388
10 1116
11 3168
12 8938
13 25100
14 70334
15 196824
16 550656
17 1540832
18 4314190
19 12089368
20 33911543
21 95228760
22 267727154
23 753579420
24 2123637318
25 5991571428
26 16923929406
27 47857425416
28 135478757308
29 383929643780
30 1089118243128
31 3092612497260

[1,4,14,44,133,388,1116,3168,8938,25100,70334,
 196824,550656,1540832,4314190,12089368,33911543,
 95228760,267727154,753579420,2123637318,
 5991571428,16923929406,47857425416,135478757308,
 383929643780,1089118243128,3092612497260]

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Last modified April 25 11:21 EDT 2024. Contains 371967 sequences. (Running on oeis4.)