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A150646 as a simple table

n a(n)
0 1
1 2
2 7
3 28
4 115
5 500
6 2222
7 10067
8 46210
9 214561
10 1005078
11 4737301
12 22463677
13 107029474
14 511992191
15 2457370516
16 11830812439
17 57106820758
18 276269824537
19 1339241424340
20 6503928190006
21 31636482948413
22 154107605564757
23 751681548781630
24 3670810368631306
25 17945609466718551
26 87818303399821312

[1,2,7,28,115,500,2222,10067,46210,214561,1005078,
 4737301,22463677,107029474,511992191,2457370516,
 11830812439,57106820758,276269824537,
 1339241424340,6503928190006,31636482948413,
 154107605564757,751681548781630,3670810368631306,
 17945609466718551,87818303399821312]

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Last modified August 22 05:29 EDT 2024. Contains 375356 sequences. (Running on oeis4.)