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A112709 as a simple table

na(n)
01
12
22
35
414
565
6376
72613
820761
9184756
101816330
1119526217
12227588213
132855033988
1438311846704
15547128228043
168279365967056
17132259968568859
182223048616707842
1939199883209336095
20723269314782624612

[1,2,2,5,14,65,376,2613,20761,184756,1816330,
 19526217,227588213,2855033988,38311846704,
 547128228043,8279365967056,132259968568859,
 2223048616707842,39199883209336095,
 723269314782624612]