A342767 - cp's OEIS frontend

A342767 Array T(n, k), n, k > 0, read by antidiagonals; a variant of lunar multiplication (A087062) based on prime factorizations of numbers (see Comments section for precise definition).

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

[1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 4, 3, 4, 1, 1, 2, 4, 4, 2, 1, 1, 4, 3, 8, 3, 4, 1, 1, 2, 6, 4, 4, 6, 2, 1, 1, 8, 3, 8, 5, 8, 3, 8, 1, 1, 4, 8, 4, 6, 6, 4, 8, 4, 1, 1, 4, 9, 16, 5, 12, 5, 16, 9, 4, 1, 1, 2, 6, 8, 8, 6, 6, 8, 8, 6, 2, 1, 1, 8, 3, 8, 9, 16, 7, 16, 9, 8, 3, 8, 1]

cp's OEIS Frontend

A342767 Array T(n, k), n, k > 0, read by antidiagonals; a variant of lunar multiplication (A087062) based on prime factorizations of numbers (see Comments section for precise definition).

Table of values

List of values

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

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

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