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A020007 as a simple table

na(n)
01
11
21
33
413
560
6346
72326
817972
9156848
101525708
1116366685
12191936577
132442829156
1433533382055
15493855262996
167766996408941
17129920667204110
182303139100436492
1943131514062719763
20850867141055471684

[1,1,1,3,13,60,346,2326,17972,156848,1525708,
 16366685,191936577,2442829156,33533382055,
 493855262996,7766996408941,129920667204110,
 2303139100436492,43131514062719763,
 850867141055471684]