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A280766 as a simple table

n a(n)
1 1
2 2
3 4
4 11
5 31
6 114
7 454
8 2078
9 10168
10 53045
11 288037
12 1617483
13 9311503
14 54723397
15 327065591
16 1982926671
17 12169747393
18 75486178107
19 472601737413
20 2983335066047
21 18971431861215
22 121440495203940
23 782013670584330
24 5063068510021079
25 32942387619476871
26 215306810250387250

[1,2,4,11,31,114,454,2078,10168,53045,288037,
 1617483,9311503,54723397,327065591,1982926671,
 12169747393,75486178107,472601737413,
 2983335066047,18971431861215,121440495203940,
 782013670584330,5063068510021079,
 32942387619476871,215306810250387250]

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Last modified September 25 10:36 EDT 2022. Contains 356978 sequences. (Running on oeis4.)