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A090901 as a simple table

n a(n)
1 1
2 1
3 2
4 4
5 8
6 17
7 38
8 91
9 230
10 605
11 1661
12 4735
13 13998
14 42795
15 135021
16 438826
17 1466690
18 5033778
19 17716515
20 63865399
21 235547709
22 887938469
23 3418054843
24 13424588130
25 53753996494
26 219278318407
27 910679550679
28 3848136018924
29 16534775039068
30 72206065899240

[1,1,2,4,8,17,38,91,230,605,1661,4735,13998,42795,
 135021,438826,1466690,5033778,17716515,63865399,
 235547709,887938469,3418054843,13424588130,
 53753996494,219278318407,910679550679,
 3848136018924,16534775039068,72206065899240]

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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)