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A231358 as a simple table

n a(n)
1 4
2 16
3 69
4 314
5 1588
6 8664
7 48485
8 278067
9 1614600
10 9457286
11 55658849
12 328567895
13 1943405850
14 11507060869
15 68185488380
16 404194144927
17 2396690435419
18 14213377453875
19 84300321175577
20 500017419228606
21 2965913106562548

[4,16,69,314,1588,8664,48485,278067,1614600,
 9457286,55658849,328567895,1943405850,11507060869,
 68185488380,404194144927,2396690435419,
 14213377453875,84300321175577,500017419228606,
 2965913106562548]

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Last modified May 18 19:36 EDT 2024. Contains 372666 sequences. (Running on oeis4.)