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A001642 as a simple table

na(n)
11
23
34
411
521
636
764
8115
9211
10383
11694
121256
132276
144126
157479
1613555
1724566
1844523
1980694
20146251
21265066
22480406
23870689
241578040
252860046
265183558
279394699
2817026986
2930859771
3055930361
31101368389
32183720435
33332975581
34603486148
351093760479

[1,3,4,11,21,36,64,115,211,383,694,1256,2276,4126,
 7479,13555,24566,44523,80694,146251,265066,480406,
 870689,1578040,2860046,5183558,9394699,17026986,
 30859771,55930361,101368389,183720435,332975581,
 603486148,1093760479]