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A156928 as a simple table

n a(n)
2 1
3 7
4 28
5 86
6 227
7 545
8 1230
9 2664
10 5613
11 11611
12 23728
13 48106
14 97031
15 195077
16 391394
17 784284
18 1570353
19 3142815
20 6288100
21 12579070
22 25161451
23 50326697
24 100657718
25 201320336
26 402646197
27 805298595

[1,7,28,86,227,545,1230,2664,5613,11611,23728,
 48106,97031,195077,391394,784284,1570353,3142815,
 6288100,12579070,25161451,50326697,100657718,
 201320336,402646197,805298595]

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Last modified June 22 03:25 EDT 2021. Contains 345367 sequences. (Running on oeis4.)