A335854 - cp's OEIS frontend

A335854 The digital-root sandwiches sequence (see Comments lines for definition).

n	a(n)
1	11
2	9
3	99
4	999
5	9999
6	9990
7	1
8	112
9	12
10	3
11	125
12	33
13	4
14	15
15	8
16	337
17	44
18	5
19	154
20	88
21	2
22	37
23	24
24	49
25	55
26	6
27	14
28	38
29	81
30	22
31	53
32	7
33	92
34	48
35	495
36	552
37	66
38	71
39	47
40	387
41	813
42	227
43	531
44	77
45	79
46	26
47	483
48	45
49	152
50	86
51	64
52	715
53	471
54	376
55	83
56	52
57	73
58	51
59	87
60	75
61	792
62	261
63	43
64	74
65	56
66	121
67	863
68	642
69	759
70	41
71	436
72	58
73	385
74	29

[11, 9, 99, 999, 9999, 9990, 1, 112, 12, 3, 125, 33, 4, 15, 8, 337, 44, 5, 154, 88, 2, 37, 24, 49, 55, 6, 14, 38, 81, 22, 53, 7, 92, 48, 495, 552, 66, 71, 47, 387, 813, 227, 531, 77, 79, 26, 483, 45, 152, 86, 64, 715, 471, 376, 83, 52, 73, 51, 87, 75, 792, 261, 43, 74, 56, 121, 863, 642, 759, 41, 436, 58, 385, 29]

cp's OEIS Frontend

A335854 The digital-root sandwiches sequence (see Comments lines for definition).

Table of values

List of values