A358234 - cp's OEIS frontend

A358234 Number of ways 2n can be expressed as an unordered product of two natural numbers that do not generate any carries when added together in the primorial base.

n	a(n)
1	1
2	2
3	2
4	1
5	1
6	2
7	2
8	2
9	3
10	1
11	1
12	4
13	2
14	3
15	3
16	1
17	1
18	4
19	2
20	2
21	4
22	1
23	1
24	4
25	2
26	3
27	4
28	2
29	1
30	5
31	2
32	3
33	3
34	1
35	2
36	6
37	2
38	3
39	4
40	1
41	1
42	4
43	2
44	2
45	5
46	1
47	1
48	6
49	3
50	3
51	3
52	2
53	1
54	5
55	2
56	4
57	4
58	1
59	1
60	7
61	2
62	3
63	6
64	1
65	2
66	5
67	2
68	2
69	3
70	2
71	1
72	6
73	2
74	3
75	4
76	2
77	2
78	3
79	2
80	3
81	4
82	1
83	1
84	6
85	2
86	3
87	2
88	1
89	1
90	8
91	3
92	2
93	4
94	1
95	2
96	5
97	2
98	4
99	5
100	1
101	1
102	5
103	2
104	3
105	6

[1, 2, 2, 1, 1, 2, 2, 2, 3, 1, 1, 4, 2, 3, 3, 1, 1, 4, 2, 2, 4, 1, 1, 4, 2, 3, 4, 2, 1, 5, 2, 3, 3, 1, 2, 6, 2, 3, 4, 1, 1, 4, 2, 2, 5, 1, 1, 6, 3, 3, 3, 2, 1, 5, 2, 4, 4, 1, 1, 7, 2, 3, 6, 1, 2, 5, 2, 2, 3, 2, 1, 6, 2, 3, 4, 2, 2, 3, 2, 3, 4, 1, 1, 6, 2, 3, 2, 1, 1, 8, 3, 2, 4, 1, 2, 5, 2, 4, 5, 1, 1, 5, 2, 3, 6]

cp's OEIS Frontend

A358234 Number of ways 2n can be expressed as an unordered product of two natural numbers that do not generate any carries when added together in the primorial base.

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	1
5	1
6	2
7	2
8	2
9	3
10	1
11	1
12	4
13	2
14	3
15	3
16	1
17	1
18	4
19	2
20	2
21	4
22	1
23	1
24	4
25	2
26	3
27	4
28	2
29	1
30	5
31	2
32	3
33	3
34	1
35	2
36	6
37	2
38	3
39	4
40	1
41	1
42	4
43	2
44	2
45	5
46	1
47	1
48	6
49	3
50	3
51	3
52	2
53	1
54	5
55	2
56	4
57	4
58	1
59	1
60	7
61	2
62	3
63	6
64	1
65	2
66	5
67	2
68	2
69	3
70	2
71	1
72	6
73	2
74	3
75	4
76	2
77	2
78	3
79	2
80	3
81	4
82	1
83	1
84	6
85	2
86	3
87	2
88	1
89	1
90	8
91	3
92	2
93	4
94	1
95	2
96	5
97	2
98	4
99	5
100	1
101	1
102	5
103	2
104	3
105	6

n	a(n)
1	1
2	2
3	2
4	1
5	1
6	2
7	2
8	2
9	3
10	1
11	1
12	4
13	2
14	3
15	3
16	1
17	1
18	4
19	2
20	2
21	4
22	1
23	1
24	4
25	2
26	3
27	4
28	2
29	1
30	5
31	2
32	3
33	3
34	1
35	2
36	6
37	2
38	3
39	4
40	1
41	1
42	4
43	2
44	2
45	5
46	1
47	1
48	6
49	3
50	3
51	3
52	2
53	1
54	5
55	2
56	4
57	4
58	1
59	1
60	7
61	2
62	3
63	6
64	1
65	2
66	5
67	2
68	2
69	3
70	2
71	1
72	6
73	2
74	3
75	4
76	2
77	2
78	3
79	2
80	3
81	4
82	1
83	1
84	6
85	2
86	3
87	2
88	1
89	1
90	8
91	3
92	2
93	4
94	1
95	2
96	5
97	2
98	4
99	5
100	1
101	1
102	5
103	2
104	3
105	6

n	a(n)
1	1
2	2
3	2
4	1
5	1
6	2
7	2
8	2
9	3
10	1
11	1
12	4
13	2
14	3
15	3
16	1
17	1
18	4
19	2
20	2
21	4
22	1
23	1
24	4
25	2
26	3
27	4
28	2
29	1
30	5
31	2
32	3
33	3
34	1
35	2
36	6
37	2
38	3
39	4
40	1
41	1
42	4
43	2
44	2
45	5
46	1
47	1
48	6
49	3
50	3
51	3
52	2
53	1
54	5
55	2
56	4
57	4
58	1
59	1
60	7
61	2
62	3
63	6
64	1
65	2
66	5
67	2
68	2
69	3
70	2
71	1
72	6
73	2
74	3
75	4
76	2
77	2
78	3
79	2
80	3
81	4
82	1
83	1
84	6
85	2
86	3
87	2
88	1
89	1
90	8
91	3
92	2
93	4
94	1
95	2
96	5
97	2
98	4
99	5
100	1
101	1
102	5
103	2
104	3
105	6