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A001053 as a simple table

na(n)
01
10
21
32
47
530
6157
7972
86961
956660
10516901
115225670
1257999271
13701216922
149173819257
15129134686520
161946194117057
1731268240559432
18533506283627401
199634381345852650
20183586751854827751
213681369418442407670
2277492344539145388821
231708512949279640961732

[1,0,1,2,7,30,157,972,6961,56660,516901,5225670,
 57999271,701216922,9173819257,129134686520,
 1946194117057,31268240559432,533506283627401,
 9634381345852650,183586751854827751,
 3681369418442407670,77492344539145388821,
 1708512949279640961732]