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A224404 as a simple table

n a(n)
1 7
2 28
3 100
4 358
5 1288
6 4636
7 16684
8 60040
9 216064
10 777544
11 2798128
12 10069552
13 36237040
14 130405312
15 469286272
16 1688808544
17 6077472256
18 21870844480
19 78706050496
20 283237457536
21 1019279418112
22 3668054858368
23 13200135512320

[7,28,100,358,1288,4636,16684,60040,216064,777544,
 2798128,10069552,36237040,130405312,469286272,
 1688808544,6077472256,21870844480,78706050496,
 283237457536,1019279418112,3668054858368,
 13200135512320]

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Last modified September 26 13:58 EDT 2022. Contains 356998 sequences. (Running on oeis4.)