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A000104 as a simple table

na(n)
01
11
21
32
45
512
635
7107
8363
91248
104460
1116094
1258937
13217117
14805475
153001127
1611230003
1742161529
18158781106
19599563893
202269506062
218609442688
2232725637373
23124621833354
24475368834568
251816103345752
266948228104703
2726618671505989
28102102788362303

[1,1,1,2,5,12,35,107,363,1248,4460,16094,58937,
 217117,805475,3001127,11230003,42161529,158781106,
 599563893,2269506062,8609442688,32725637373,
 124621833354,475368834568,1816103345752,
 6948228104703,26618671505989,102102788362303]