A380872 - cp's OEIS frontend

A380872 Infinite square array, where row r >= 0 is the orbit of r under the map A380873: concatenate(sum of digits, product of digits).

n	a(n)
0	0
1	0
2	1
3	0
4	11
5	2
6	0
7	21
8	22
9	3
10	0
11	32
12	44
13	33
14	4
15	0
16	56
17	816
18	69
19	44
20	5
21	0
22	1130
23	1548
24	1554
25	816
26	55
27	6
28	0
29	50
30	18160
31	15100
32	1548
33	1025
34	66
35	7
36	0
37	50
38	160
39	70
40	18160
41	80
42	1236
43	77
44	8
45	0
46	50
47	70
48	70
49	160
50	80
51	1236
52	1449
53	88
54	9
55	0
56	50
57	70
58	70
59	70
60	80
61	1236
62	18144
63	1664
64	99
65	10
66	0
67	50
68	70
69	70
70	70
71	80
72	1236
73	18128
74	17144
75	1881
76	10
77	11
78	0
79	50
80	70
81	70
82	70
83	80
84	1236
85	20128
86	17112
87	1864

[0, 0, 1, 0, 11, 2, 0, 21, 22, 3, 0, 32, 44, 33, 4, 0, 56, 816, 69, 44, 5, 0, 1130, 1548, 1554, 816, 55, 6, 0, 50, 18160, 15100, 1548, 1025, 66, 7, 0, 50, 160, 70, 18160, 80, 1236, 77, 8, 0, 50, 70, 70, 160, 80, 1236, 1449, 88, 9, 0, 50, 70, 70, 70, 80, 1236, 18144, 1664, 99, 10, 0, 50, 70, 70, 70, 80, 1236, 18128, 17144, 1881, 10, 11, 0, 50, 70, 70, 70, 80, 1236, 20128, 17112, 1864]

cp's OEIS Frontend

A380872 Infinite square array, where row r >= 0 is the orbit of r under the map A380873: concatenate(sum of digits, product of digits).

Table of values

List of values