A349278 - cp's OEIS frontend

A349278 a(n) is the product of the sum of the last i digits of n, with i going from 1 to the total number of 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	2
12	6
13	12
14	20
15	30
16	42
17	56
18	72
19	90
20	0
21	3
22	8
23	15
24	24
25	35
26	48
27	63
28	80
29	99
30	0
31	4
32	10
33	18
34	28
35	40
36	54
37	70
38	88
39	108
40	0
41	5
42	12
43	21
44	32
45	45
46	60
47	77
48	96
49	117
50	0
51	6
52	14
53	24
54	36
55	50
56	66
57	84
58	104
59	126
60	0
61	7
62	16
63	27
64	40
65	55
66	72
67	91
68	112
69	135
70	0

[1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 2, 6, 12, 20, 30, 42, 56, 72, 90, 0, 3, 8, 15, 24, 35, 48, 63, 80, 99, 0, 4, 10, 18, 28, 40, 54, 70, 88, 108, 0, 5, 12, 21, 32, 45, 60, 77, 96, 117, 0, 6, 14, 24, 36, 50, 66, 84, 104, 126, 0, 7, 16, 27, 40, 55, 72, 91, 112, 135, 0]

cp's OEIS Frontend

A349278 a(n) is the product of the sum of the last i digits of n, with i going from 1 to the total number of 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	2
12	6
13	12
14	20
15	30
16	42
17	56
18	72
19	90
20	0
21	3
22	8
23	15
24	24
25	35
26	48
27	63
28	80
29	99
30	0
31	4
32	10
33	18
34	28
35	40
36	54
37	70
38	88
39	108
40	0
41	5
42	12
43	21
44	32
45	45
46	60
47	77
48	96
49	117
50	0
51	6
52	14
53	24
54	36
55	50
56	66
57	84
58	104
59	126
60	0
61	7
62	16
63	27
64	40
65	55
66	72
67	91
68	112
69	135
70	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	2
12	6
13	12
14	20
15	30
16	42
17	56
18	72
19	90
20	0
21	3
22	8
23	15
24	24
25	35
26	48
27	63
28	80
29	99
30	0
31	4
32	10
33	18
34	28
35	40
36	54
37	70
38	88
39	108
40	0
41	5
42	12
43	21
44	32
45	45
46	60
47	77
48	96
49	117
50	0
51	6
52	14
53	24
54	36
55	50
56	66
57	84
58	104
59	126
60	0
61	7
62	16
63	27
64	40
65	55
66	72
67	91
68	112
69	135
70	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	2
12	6
13	12
14	20
15	30
16	42
17	56
18	72
19	90
20	0
21	3
22	8
23	15
24	24
25	35
26	48
27	63
28	80
29	99
30	0
31	4
32	10
33	18
34	28
35	40
36	54
37	70
38	88
39	108
40	0
41	5
42	12
43	21
44	32
45	45
46	60
47	77
48	96
49	117
50	0
51	6
52	14
53	24
54	36
55	50
56	66
57	84
58	104
59	126
60	0
61	7
62	16
63	27
64	40
65	55
66	72
67	91
68	112
69	135
70	0