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A318270 as a simple table

na(n)
00
10
20
30
40
5186
63666
736714
8253386
91369260
106209700
1124668742
1288338174
13290968686
14894709790
152597386330
167181246394
1719040425628
1848684375292
19120592523460
20290476059204
21682548818802
221568744083242
233534725236308
247823387477220
2517037467831748

[0,0,0,0,0,186,3666,36714,253386,1369260,6209700,
 24668742,88338174,290968686,894709790,2597386330,
 7181246394,19040425628,48684375292,120592523460,
 290476059204,682548818802,1568744083242,
 3534725236308,7823387477220,17037467831748]