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A192640 as a simple table

na(n)
10
21
35
4137
515055
65986313
77174532375
825969938730579
9281423389721323932
109146849687492666154781
11891167854920321677292610251

[0,1,5,137,15055,5986313,7174532375,
 25969938730579,281423389721323932,
 9146849687492666154781,
 891167854920321677292610251]