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A001419 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 0
6 0
7 1
8 6
9 37
10 195
11 979
12 4663
13 21474
14 96496
15 425449
16 1849252
17 7946380
18 33840946
19 143060339
20 601165888
21 2513617990
22 10466220315
23 43425174374
24 179630865835
25 741123699012
26 3050860717372

[0,0,0,0,0,0,1,6,37,195,979,4663,21474,96496,
 425449,1849252,7946380,33840946,143060339,
 601165888,2513617990,10466220315,43425174374,
 179630865835,741123699012,3050860717372]

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Last modified March 2 12:26 EST 2021. Contains 341750 sequences. (Running on oeis4.)