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A365303 as a simple table

na(n)
10
21
38
457
5256
61153
74181
814180
947381
10115267
11307214
12737909
131682367
143850940
158557010
1618311575
1737925058
1861662056

[0,1,8,57,256,1153,4181,14180,47381,115267,307214,
 737909,1682367,3850940,8557010,18311575,37925058,
 61662056]