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A257616 as a simple table

na(n)
01
12
22
34
432
54
68
7312
8312
98
1016
112656
128736
132656
1416
1532
1621664
17175424
18175424
1921664
2032
2164
22174336
233019200
247016960
253019200
26174336
2764
28128
291397120
3047847552
31218838400
32218838400
3347847552
341397120
35128
36256
3711182592
38722956288
395907889664
4011379596800
415907889664
42722956288
4311182592
44256

[1,2,2,4,32,4,8,312,312,8,16,2656,8736,2656,16,32,
 21664,175424,175424,21664,32,64,174336,3019200,
 7016960,3019200,174336,64,128,1397120,47847552,
 218838400,218838400,47847552,1397120,128,256,
 11182592,722956288,5907889664,11379596800,
 5907889664,722956288,11182592,256]