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A000988 as a simple table

na(n)
01
11
21
32
47
518
660
7196
8704
92500
109189
1133896
12126759
13476270
141802312
156849777
1626152418
17100203194
18385221143
191485200848
205741256764
2122245940545
2286383382827
23336093325058
241309998125640
255114451441106
2619998172734786
2778306011677182
28307022182222506
291205243866707468
304736694001644862

[1,1,1,2,7,18,60,196,704,2500,9189,33896,126759,
 476270,1802312,6849777,26152418,100203194,
 385221143,1485200848,5741256764,22245940545,
 86383382827,336093325058,1309998125640,
 5114451441106,19998172734786,78306011677182,
 307022182222506,1205243866707468,4736694001644862]