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A370587 as a simple table

na(n)
00
11
21
32
46
510
624
744
8116
9236
10468
11908
121960
133776
147812
1515876
1632504
1763744
18130104

[0,1,1,2,6,10,24,44,116,236,468,908,1960,3776,
 7812,15876,32504,63744,130104]