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A003318 as a simple table

na(n)
11
22
34
47
512
618
728
839
955
1074
11100
12127
13167
14208
15261
16322
17399
18477
19581
20686
21820
22967
231142
241318
251545
261778
272053
282347
292697
303048
313486
323925
334441
344986
355610
366250
377024
387799
398680
409604
4110673
4211743
4313008
4414274
4515718
4617239
4718937
4820636

[1,2,4,7,12,18,28,39,55,74,100,127,167,208,261,
 322,399,477,581,686,820,967,1142,1318,1545,1778,
 2053,2347,2697,3048,3486,3925,4441,4986,5610,6250,
 7024,7799,8680,9604,10673,11743,13008,14274,15718,
 17239,18937,20636]