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A007002 as a simple table

na(n)
11
21
33
46
516
646
7126
8448
91366
105356
1118568
1276296
13297012
141264264
155412928
1623928024
17110468806
18509578384
192495966844
2012051904744
2161878848596
22312943394336
231670571625528
248836179426416
2548794206157176
26269194017597376
271533137311902576

[1,1,3,6,16,46,126,448,1366,5356,18568,76296,
 297012,1264264,5412928,23928024,110468806,
 509578384,2495966844,12051904744,61878848596,
 312943394336,1670571625528,8836179426416,
 48794206157176,269194017597376,1533137311902576]