A378316 - cp's OEIS frontend

A378316 a(1) = 1, a(2) = 2. For n > 2, a(n) is the sum of the digits of a(n-2) plus the sum of the same digits occurring in all terms a(i); 1 <= i <= n-2.

n	a(n)
1	1
2	2
3	1
4	2
5	2
6	4
7	6
8	4
9	6
10	8
11	12
12	8
13	11
14	16
15	5
16	24
17	5
18	22
19	10
20	14
21	7
22	24
23	7
24	36
25	14
26	27
27	33
28	39
29	9
30	21
31	18
32	30
33	35
34	15
35	33
36	32
37	24
38	49
39	52
40	59
41	51
42	66
43	48
44	36
45	68
46	72
47	88
48	56
49	56
50	94
51	105
52	85
53	64
54	119
55	110
56	70
57	18
58	35
59	91
60	93
61	83
62	108
63	119
64	109
65	104
66	114
67	73
68	79

[1, 2, 1, 2, 2, 4, 6, 4, 6, 8, 12, 8, 11, 16, 5, 24, 5, 22, 10, 14, 7, 24, 7, 36, 14, 27, 33, 39, 9, 21, 18, 30, 35, 15, 33, 32, 24, 49, 52, 59, 51, 66, 48, 36, 68, 72, 88, 56, 56, 94, 105, 85, 64, 119, 110, 70, 18, 35, 91, 93, 83, 108, 119, 109, 104, 114, 73, 79]

cp's OEIS Frontend

A378316 a(1) = 1, a(2) = 2. For n > 2, a(n) is the sum of the digits of a(n-2) plus the sum of the same digits occurring in all terms a(i); 1 <= i <= n-2.

Table of values

List of values

n	a(n)
1	1
2	2
3	1
4	2
5	2
6	4
7	6
8	4
9	6
10	8
11	12
12	8
13	11
14	16
15	5
16	24
17	5
18	22
19	10
20	14
21	7
22	24
23	7
24	36
25	14
26	27
27	33
28	39
29	9
30	21
31	18
32	30
33	35
34	15
35	33
36	32
37	24
38	49
39	52
40	59
41	51
42	66
43	48
44	36
45	68
46	72
47	88
48	56
49	56
50	94
51	105
52	85
53	64
54	119
55	110
56	70
57	18
58	35
59	91
60	93
61	83
62	108
63	119
64	109
65	104
66	114
67	73
68	79

n	a(n)
1	1
2	2
3	1
4	2
5	2
6	4
7	6
8	4
9	6
10	8
11	12
12	8
13	11
14	16
15	5
16	24
17	5
18	22
19	10
20	14
21	7
22	24
23	7
24	36
25	14
26	27
27	33
28	39
29	9
30	21
31	18
32	30
33	35
34	15
35	33
36	32
37	24
38	49
39	52
40	59
41	51
42	66
43	48
44	36
45	68
46	72
47	88
48	56
49	56
50	94
51	105
52	85
53	64
54	119
55	110
56	70
57	18
58	35
59	91
60	93
61	83
62	108
63	119
64	109
65	104
66	114
67	73
68	79

n	a(n)
1	1
2	2
3	1
4	2
5	2
6	4
7	6
8	4
9	6
10	8
11	12
12	8
13	11
14	16
15	5
16	24
17	5
18	22
19	10
20	14
21	7
22	24
23	7
24	36
25	14
26	27
27	33
28	39
29	9
30	21
31	18
32	30
33	35
34	15
35	33
36	32
37	24
38	49
39	52
40	59
41	51
42	66
43	48
44	36
45	68
46	72
47	88
48	56
49	56
50	94
51	105
52	85
53	64
54	119
55	110
56	70
57	18
58	35
59	91
60	93
61	83
62	108
63	119
64	109
65	104
66	114
67	73
68	79