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A318570 as a simple table

n a(n)
0 1
1 2
2 6
3 18
4 52
5 146
6 402
7 1090
8 2916
9 7708
10 20160
11 52236
12 134222
13 342304
14 867024
15 2182384
16 5461696
17 13595918
18 33677550
19 83036878
20 203859820
21 498470998
22 1214230586
23 2947204870
24 7129403128
25 17191258642
26 41328057106
27 99067295658
28 236822823336
29 564650823162
30 1342921372126

[1,2,6,18,52,146,402,1090,2916,7708,20160,52236,
 134222,342304,867024,2182384,5461696,13595918,
 33677550,83036878,203859820,498470998,1214230586,
 2947204870,7129403128,17191258642,41328057106,
 99067295658,236822823336,564650823162,
 1342921372126]

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Last modified April 25 07:53 EDT 2024. Contains 371964 sequences. (Running on oeis4.)