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A187010 as a simple table

na(n)
01
11
21
34
48
520
665
7189
8545
91672
105234
1116483
1252508
13168948
14547031
151782892
165851234
1719308826
1864012154
19213130527
20712361672
212389177656
228038552120
2327125159211
2491774118484
25311265968741
261058099992873
273604394906225

[1,1,1,4,8,20,65,189,545,1672,5234,16483,52508,
 168948,547031,1782892,5851234,19308826,64012154,
 213130527,712361672,2389177656,8038552120,
 27125159211,91774118484,311265968741,
 1058099992873,3604394906225]