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A025602 as a simple table

na(n)
00
10
20
30
40
518
60
7852
80
932974
100
111216736
120
1344265306
140
151602980908
160
1757958913510
180
192094514154552
200
2175677759126258
220
232734176449182980
240
2598781516222538110
260
273568795954184265360
280
29128933769847371450506
300
314658126510414596025052
320

[0,0,0,0,0,18,0,852,0,32974,0,1216736,0,44265306,
 0,1602980908,0,57958913510,0,2094514154552,0,
 75677759126258,0,2734176449182980,0,
 98781516222538110,0,3568795954184265360,0,
 128933769847371450506,0,4658126510414596025052,0]