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A074358 as a simple table

na(n)
00
10
20
34
420
580
6288
7976
83184
910112
1031488
1196576
12292672
13878336
142614784
157731456
1622728448
1766482176
18193617920
19561718272
201624101888
214681535488
2213457924096
2338592008192
24110419341312
25315287830528
26898583560192

[0,0,0,4,20,80,288,976,3184,10112,31488,96576,
 292672,878336,2614784,7731456,22728448,66482176,
 193617920,561718272,1624101888,4681535488,
 13457924096,38592008192,110419341312,315287830528,
 898583560192]