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A304305 as a simple table

n a(n)
1 4
2 23
3 77
4 261
5 918
6 3270
7 11739
8 42286
9 152593
10 551277
11 1992676
12 7204835
13 26054060
14 94223657
15 340770353
16 1232459982
17 4457471732
18 16121551990
19 58307765439
20 210885454206
21 762723638858
22 2758595178785
23 9977203623515
24 36085252551736

[4,23,77,261,918,3270,11739,42286,152593,551277,
 1992676,7204835,26054060,94223657,340770353,
 1232459982,4457471732,16121551990,58307765439,
 210885454206,762723638858,2758595178785,
 9977203623515,36085252551736]

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Last modified April 25 05:18 EDT 2024. Contains 371964 sequences. (Running on oeis4.)