A373831 - cp's OEIS frontend

A373831 Numbers whose primorial base representation has alternating digit sum that is a multiple of 3.

n	a(n)
1	0
2	3
3	8
4	11
5	13
6	16
7	18
8	21
9	26
10	29
11	31
12	34
13	36
14	39
15	44
16	47
17	49
18	52
19	54
20	57
21	62
22	65
23	67
24	70
25	72
26	75
27	80
28	83
29	85
30	88
31	90
32	93
33	98
34	101
35	103
36	106
37	108
38	111
39	116
40	119
41	121
42	124
43	126
44	129
45	134
46	137
47	139
48	142
49	144
50	147
51	152
52	155
53	157
54	160
55	162
56	165
57	170
58	173
59	175
60	178
61	180
62	183
63	188
64	191
65	193
66	196
67	198
68	201
69	206
70	209
71	212

[0, 3, 8, 11, 13, 16, 18, 21, 26, 29, 31, 34, 36, 39, 44, 47, 49, 52, 54, 57, 62, 65, 67, 70, 72, 75, 80, 83, 85, 88, 90, 93, 98, 101, 103, 106, 108, 111, 116, 119, 121, 124, 126, 129, 134, 137, 139, 142, 144, 147, 152, 155, 157, 160, 162, 165, 170, 173, 175, 178, 180, 183, 188, 191, 193, 196, 198, 201, 206, 209, 212]

cp's OEIS Frontend

A373831 Numbers whose primorial base representation has alternating digit sum that is a multiple of 3.

Table of values

List of values

n	a(n)
1	0
2	3
3	8
4	11
5	13
6	16
7	18
8	21
9	26
10	29
11	31
12	34
13	36
14	39
15	44
16	47
17	49
18	52
19	54
20	57
21	62
22	65
23	67
24	70
25	72
26	75
27	80
28	83
29	85
30	88
31	90
32	93
33	98
34	101
35	103
36	106
37	108
38	111
39	116
40	119
41	121
42	124
43	126
44	129
45	134
46	137
47	139
48	142
49	144
50	147
51	152
52	155
53	157
54	160
55	162
56	165
57	170
58	173
59	175
60	178
61	180
62	183
63	188
64	191
65	193
66	196
67	198
68	201
69	206
70	209
71	212

n	a(n)
1	0
2	3
3	8
4	11
5	13
6	16
7	18
8	21
9	26
10	29
11	31
12	34
13	36
14	39
15	44
16	47
17	49
18	52
19	54
20	57
21	62
22	65
23	67
24	70
25	72
26	75
27	80
28	83
29	85
30	88
31	90
32	93
33	98
34	101
35	103
36	106
37	108
38	111
39	116
40	119
41	121
42	124
43	126
44	129
45	134
46	137
47	139
48	142
49	144
50	147
51	152
52	155
53	157
54	160
55	162
56	165
57	170
58	173
59	175
60	178
61	180
62	183
63	188
64	191
65	193
66	196
67	198
68	201
69	206
70	209
71	212

n	a(n)
1	0
2	3
3	8
4	11
5	13
6	16
7	18
8	21
9	26
10	29
11	31
12	34
13	36
14	39
15	44
16	47
17	49
18	52
19	54
20	57
21	62
22	65
23	67
24	70
25	72
26	75
27	80
28	83
29	85
30	88
31	90
32	93
33	98
34	101
35	103
36	106
37	108
38	111
39	116
40	119
41	121
42	124
43	126
44	129
45	134
46	137
47	139
48	142
49	144
50	147
51	152
52	155
53	157
54	160
55	162
56	165
57	170
58	173
59	175
60	178
61	180
62	183
63	188
64	191
65	193
66	196
67	198
68	201
69	206
70	209
71	212