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A283722 as a simple table

na(n)
10
260
31088
415228
5196548
62391696
728103560
8322050940
93622197748
1040156778920
11440103529194
124778398401120
1351478875779886
14550962104490308
155863716020439970
1662102879848049336
17654945091390069876

[0,60,1088,15228,196548,2391696,28103560,
 322050940,3622197748,40156778920,440103529194,
 4778398401120,51478875779886,550962104490308,
 5863716020439970,62102879848049336,
 654945091390069876]