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A003583 as a simple table

na(n)
01
15
226
3130
4628
52954
613612
761716
8276200
91223002
105367676
1123383100
12101215576
13435712580
141866667448
157963424104
1633846062544
17143373104378
18605518549660
192550438016812
2010716162617336

[1,5,26,130,628,2954,13612,61716,276200,1223002,
 5367676,23383100,101215576,435712580,1866667448,
 7963424104,33846062544,143373104378,605518549660,
 2550438016812,10716162617336]