A128212 - cp's OEIS frontend

A128212 a(n) = Sum_digits(p), where p is the product of the digits of n.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	0
11	1
12	2
13	3
14	4
15	5
16	6
17	7
18	8
19	9
20	0
21	2
22	4
23	6
24	8
25	1
26	3
27	5
28	7
29	9
30	0
31	3
32	6
33	9
34	3
35	6
36	9
37	3
38	6
39	9
40	0
41	4
42	8
43	3
44	7
45	2
46	6
47	10
48	5
49	9
50	0
51	5
52	1
53	6
54	2
55	7
56	3
57	8
58	4
59	9
60	0
61	6
62	3
63	9
64	6
65	3
66	9
67	6
68	12
69	9
70	0
71	7
72	5
73	3
74	10
75	8
76	6
77	13
78	11
79	9
80	0
81	8
82	7
83	6
84	5
85	4
86	12
87	11
88	10
89	9
90	0
91	9
92	9
93	9
94	9
95	9
96	9
97	9
98	9
99	9
100	0

[1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 2, 4, 6, 8, 1, 3, 5, 7, 9, 0, 3, 6, 9, 3, 6, 9, 3, 6, 9, 0, 4, 8, 3, 7, 2, 6, 10, 5, 9, 0, 5, 1, 6, 2, 7, 3, 8, 4, 9, 0, 6, 3, 9, 6, 3, 9, 6, 12, 9, 0, 7, 5, 3, 10, 8, 6, 13, 11, 9, 0, 8, 7, 6, 5, 4, 12, 11, 10, 9, 0, 9, 9, 9, 9, 9, 9, 9, 9, 9, 0]

cp's OEIS Frontend

A128212 a(n) = Sum_digits(p), where p is the product of the digits of n.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	0
11	1
12	2
13	3
14	4
15	5
16	6
17	7
18	8
19	9
20	0
21	2
22	4
23	6
24	8
25	1
26	3
27	5
28	7
29	9
30	0
31	3
32	6
33	9
34	3
35	6
36	9
37	3
38	6
39	9
40	0
41	4
42	8
43	3
44	7
45	2
46	6
47	10
48	5
49	9
50	0
51	5
52	1
53	6
54	2
55	7
56	3
57	8
58	4
59	9
60	0
61	6
62	3
63	9
64	6
65	3
66	9
67	6
68	12
69	9
70	0
71	7
72	5
73	3
74	10
75	8
76	6
77	13
78	11
79	9
80	0
81	8
82	7
83	6
84	5
85	4
86	12
87	11
88	10
89	9
90	0
91	9
92	9
93	9
94	9
95	9
96	9
97	9
98	9
99	9
100	0

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	0
11	1
12	2
13	3
14	4
15	5
16	6
17	7
18	8
19	9
20	0
21	2
22	4
23	6
24	8
25	1
26	3
27	5
28	7
29	9
30	0
31	3
32	6
33	9
34	3
35	6
36	9
37	3
38	6
39	9
40	0
41	4
42	8
43	3
44	7
45	2
46	6
47	10
48	5
49	9
50	0
51	5
52	1
53	6
54	2
55	7
56	3
57	8
58	4
59	9
60	0
61	6
62	3
63	9
64	6
65	3
66	9
67	6
68	12
69	9
70	0
71	7
72	5
73	3
74	10
75	8
76	6
77	13
78	11
79	9
80	0
81	8
82	7
83	6
84	5
85	4
86	12
87	11
88	10
89	9
90	0
91	9
92	9
93	9
94	9
95	9
96	9
97	9
98	9
99	9
100	0

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	0
11	1
12	2
13	3
14	4
15	5
16	6
17	7
18	8
19	9
20	0
21	2
22	4
23	6
24	8
25	1
26	3
27	5
28	7
29	9
30	0
31	3
32	6
33	9
34	3
35	6
36	9
37	3
38	6
39	9
40	0
41	4
42	8
43	3
44	7
45	2
46	6
47	10
48	5
49	9
50	0
51	5
52	1
53	6
54	2
55	7
56	3
57	8
58	4
59	9
60	0
61	6
62	3
63	9
64	6
65	3
66	9
67	6
68	12
69	9
70	0
71	7
72	5
73	3
74	10
75	8
76	6
77	13
78	11
79	9
80	0
81	8
82	7
83	6
84	5
85	4
86	12
87	11
88	10
89	9
90	0
91	9
92	9
93	9
94	9
95	9
96	9
97	9
98	9
99	9
100	0