login

A222057 as a simple table

na(n)
11
21
33
41
59
611
71
821
966
1050
111
1245
13275
14500
15274
161
1793
18990
193250
204110
211764
221
23189
243311
2517500
2638360
2737044
2813068
291
30381
3110626
3285050
33287700
34469224
35365904
36109584
371
38765
3933275
40388500
411904574
424667544
436037416
443945024
451026576
461
471533
48102630
491705250
5011651850
5140266828
5276839840
5382188000
5446195920
5510628640

[1,1,3,1,9,11,1,21,66,50,1,45,275,500,274,1,93,
 990,3250,4110,1764,1,189,3311,17500,38360,37044,
 13068,1,381,10626,85050,287700,469224,365904,
 109584,1,765,33275,388500,1904574,4667544,6037416,
 3945024,1026576,1,1533,102630,1705250,11651850,
 40266828,76839840,82188000,46195920,10628640]