A098217 - OEIS

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A098217 as a simple table

n	a(n)
1	0
2	2
3	4
4	4
5	3
6	6
7	8
8	8
9	7
10	8
11	9
12	5
13	9
14	22
15	11
16	7
17	44
18	44
19	66
20	33
21	88
22	11
23	33
24	55
25	88
26	55
27	99
28	111
29	77
30	33
31	99
32	99
33	111
34	77
35	77
36	111
37	55
38	333
39	55
40	77
41	444
42	99
43	333
44	333
45	77
46	111
47	77
48	99
49	77
50	77
51	777
52	888
53	888
54	111
55	99
56	999
57	777
58	111
59	99
60	99
61	555
62	111
63	999
64	999
65	999
66	111
67	1111

[0,2,4,4,3,6,8,8,7,8,9,5,9,22,11,7,44,44,66,33,88, 11,33,55,88,55,99,111,77,33,99,99,111,77,77,111, 55,333,55,77,444,99,333,333,77,111,77,99,77,77, 777,888,888,111,99,999,777,111,99,99,555,111,999, 999,999,111,1111]