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A154152 as a simple table

n a(n)
1 4
2 10
3 37
4 67
5 220
6 394
7 1285
8 2299
9 7492
10 13402
11 43669
12 78115
13 254524
14 455290
15 1483477
16 2653627
17 8646340
18 15466474
19 50394565
20 90145219
21 293721052
22 525404842
23 1711931749
24 3062283835
25 9977869444
26 17848298170
27 58155284917
28 104027505187
29 338953840060

[4,10,37,67,220,394,1285,2299,7492,13402,43669,
 78115,254524,455290,1483477,2653627,8646340,
 15466474,50394565,90145219,293721052,525404842,
 1711931749,3062283835,9977869444,17848298170,
 58155284917,104027505187,338953840060]

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Last modified March 25 22:28 EDT 2019. Contains 321477 sequences. (Running on oeis4.)