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A355871 as a simple table

na(n)
01
12
22
312
422
5144
6318
72102
85120
934274
1088352
11597002
121599676
1310879502
1429983958
15204851678
16576914820
173953960052
1811329537402
1977815428652
20226170428918
211555598157856
224576144621100
2331500863667990
2493634976287220
25644808182456240
261934219875423410

[1,2,2,12,22,144,318,2102,5120,34274,88352,597002,
 1599676,10879502,29983958,204851678,576914820,
 3953960052,11329537402,77815428652,226170428918,
 1555598157856,4576144621100,31500863667990,
 93634976287220,644808182456240,1934219875423410]