A327924 - cp's OEIS frontend

A327924 Square array read by ascending antidiagonals: T(m,n) is the number of non-isomorphic groups G such that G is the semidirect product of C_m and C_n, where C_m is a normal subgroup of G and C_n is a subgroup of G.

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

[1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 2, 1, 2, 1, 1, 1, 1, 2, 1, 3, 1, 2, 1, 1, 1, 4, 2, 2, 1, 2, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 1, 1, 2, 2, 4, 1, 2, 1, 2, 1, 1, 1, 1, 2, 1, 2, 1, 4, 1, 3, 1, 2, 1, 1, 1, 4, 1, 3, 1, 4, 1, 2, 1, 2, 1, 1, 1]

cp's OEIS Frontend

A327924 Square array read by ascending antidiagonals: T(m,n) is the number of non-isomorphic groups G such that G is the semidirect product of C_m and C_n, where C_m is a normal subgroup of G and C_n is a subgroup of G.

Table of values

List of values

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

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

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