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A176641 as a simple table

na(n)
01
11
21
31
428
51
61
7784
8784
91
101
1121952
12614656
1321952
141
151
16614656
17481890304
18481890304
19614656
201
211
2217210368
23377801998336
2410578455953408
25377801998336
2617210368
271
281
29481890304
30296196766695424
31232218265089212416
32232218265089212416
33296196766695424
34481890304
351

[1,1,1,1,28,1,1,784,784,1,1,21952,614656,21952,1,
 1,614656,481890304,481890304,614656,1,1,17210368,
 377801998336,10578455953408,377801998336,17210368,
 1,1,481890304,296196766695424,232218265089212416,
 232218265089212416,296196766695424,481890304,1]