A084542 - OEIS

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A084542 as a simple table

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	9
7	12
8	13
9	27
10	45
11	78
12	86
13	115
14	131
15	172
16	203
17	278
18	315
19	322
20	489
21	589
22	884
23	1181
24	1289
25	1362
26	1402
27	1464
28	1541
29	1601
30	1638

[1,2,3,4,5,9,12,13,27,45,78,86,115,131,172,203, 278,315,322,489,589,884,1181,1289,1362,1402,1464, 1541,1601,1638]