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A000072 as a simple table

na(n)
01
11
22
34
47
512
622
741
872
9137
10254
11476
12901
131716
143274
156286
1612090
1723331
1845140
1987511
20169972
21330752
22644499
231257523
242456736
254804666
269405749
2718429828
2836141339
2970928099
30139295793
31273741700
32538277486
331059051586
342084763319
354105924366

[1,1,2,4,7,12,22,41,72,137,254,476,901,1716,3274,
 6286,12090,23331,45140,87511,169972,330752,644499,
 1257523,2456736,4804666,9405749,18429828,36141339,
 70928099,139295793,273741700,538277486,1059051586,
 2084763319,4105924366]