A130917 - cp's OEIS frontend

A130917 a(n) is the sum of the digital roots of all of the previous terms.

n	a(n)
1	1
2	1
3	2
4	4
5	8
6	16
7	23
8	28
9	29
10	31
11	35
12	43
13	50
14	55
15	56
16	58
17	62
18	70
19	77
20	82
21	83
22	85
23	89
24	97
25	104
26	109
27	110
28	112
29	116
30	124
31	131
32	136
33	137
34	139
35	143
36	151
37	158
38	163
39	164
40	166
41	170
42	178
43	185
44	190
45	191
46	193
47	197
48	205

[1, 1, 2, 4, 8, 16, 23, 28, 29, 31, 35, 43, 50, 55, 56, 58, 62, 70, 77, 82, 83, 85, 89, 97, 104, 109, 110, 112, 116, 124, 131, 136, 137, 139, 143, 151, 158, 163, 164, 166, 170, 178, 185, 190, 191, 193, 197, 205]

cp's OEIS Frontend

A130917 a(n) is the sum of the digital roots of all of the previous terms.

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	4
5	8
6	16
7	23
8	28
9	29
10	31
11	35
12	43
13	50
14	55
15	56
16	58
17	62
18	70
19	77
20	82
21	83
22	85
23	89
24	97
25	104
26	109
27	110
28	112
29	116
30	124
31	131
32	136
33	137
34	139
35	143
36	151
37	158
38	163
39	164
40	166
41	170
42	178
43	185
44	190
45	191
46	193
47	197
48	205

n	a(n)
1	1
2	1
3	2
4	4
5	8
6	16
7	23
8	28
9	29
10	31
11	35
12	43
13	50
14	55
15	56
16	58
17	62
18	70
19	77
20	82
21	83
22	85
23	89
24	97
25	104
26	109
27	110
28	112
29	116
30	124
31	131
32	136
33	137
34	139
35	143
36	151
37	158
38	163
39	164
40	166
41	170
42	178
43	185
44	190
45	191
46	193
47	197
48	205

n	a(n)
1	1
2	1
3	2
4	4
5	8
6	16
7	23
8	28
9	29
10	31
11	35
12	43
13	50
14	55
15	56
16	58
17	62
18	70
19	77
20	82
21	83
22	85
23	89
24	97
25	104
26	109
27	110
28	112
29	116
30	124
31	131
32	136
33	137
34	139
35	143
36	151
37	158
38	163
39	164
40	166
41	170
42	178
43	185
44	190
45	191
46	193
47	197
48	205