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A257614 as a simple table

na(n)
01
12
22
34
428
54
68
7244
8244
98
1016
111844
125856
131844
1416
1532
1613260
17101620
18101620
1913260
2032
2164
2293684
231511160
243455080
251511160
2693684
2764
28128
29657836
3020663388
3191981880
3291981880
3320663388
34657836
35128
36256
374609588
38269011408
392121603436
404047202720
412121603436
42269011408
434609588
44256

[1,2,2,4,28,4,8,244,244,8,16,1844,5856,1844,16,32,
 13260,101620,101620,13260,32,64,93684,1511160,
 3455080,1511160,93684,64,128,657836,20663388,
 91981880,91981880,20663388,657836,128,256,4609588,
 269011408,2121603436,4047202720,2121603436,
 269011408,4609588,256]