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A343599 as a simple table

na(n)
01
11
24
31
46
518
61
78
832
988
101
1110
1250
13170
14450
151
1612
1772
18292
19912
202364
211
2214
2398
24462
251666
264942
2712642
281
2916
30128
31688
322816
339424
3427008
3568464
361
3718
38162
39978
404482
4116722
4253154
43148626
44374274
451
4620
47200
481340
496800
5028004
5197880
52299660
53822560
542060980
551
5622
57242
581782
599922
6044726
61170610
62568150
631690370
644573910
6511414898

[1,1,4,1,6,18,1,8,32,88,1,10,50,170,450,1,12,72,
 292,912,2364,1,14,98,462,1666,4942,12642,1,16,128,
 688,2816,9424,27008,68464,1,18,162,978,4482,16722,
 53154,148626,374274,1,20,200,1340,6800,28004,
 97880,299660,822560,2060980,1,22,242,1782,9922,
 44726,170610,568150,1690370,4573910,11414898]