A109646 - cp's OEIS frontend

A109646 Triangle, read by rows, of the number of different isotemporal classes of rotationally distinct diasters with n (rows) total peripheral edges with k (columns) peripheral edges on one side.

n	a(n)
0	1
1	1
2	1
3	3
4	1
5	6
6	1
7	8
8	6
9	1
10	10
11	12
12	1
13	12
14	15
15	10
16	1
17	14
18	18
19	20
20	1
21	16
22	21
23	24
24	15
25	1
26	18
27	24
28	28
29	30
30	1
31	20
32	27
33	32
34	35
35	21
36	1
37	22
38	30
39	36
40	40
41	42
42	1
43	24
44	33
45	40
46	45
47	48
48	28
49	1
50	26
51	36
52	44
53	50
54	54
55	56
56	1
57	28
58	39
59	48
60	55
61	60
62	63
63	36
64	1
65	30
66	42
67	52
68	60
69	66
70	70
71	72
72	1
73	32
74	45
75	56
76	65

[1, 1, 1, 3, 1, 6, 1, 8, 6, 1, 10, 12, 1, 12, 15, 10, 1, 14, 18, 20, 1, 16, 21, 24, 15, 1, 18, 24, 28, 30, 1, 20, 27, 32, 35, 21, 1, 22, 30, 36, 40, 42, 1, 24, 33, 40, 45, 48, 28, 1, 26, 36, 44, 50, 54, 56, 1, 28, 39, 48, 55, 60, 63, 36, 1, 30, 42, 52, 60, 66, 70, 72, 1, 32, 45, 56, 65]

cp's OEIS Frontend

A109646 Triangle, read by rows, of the number of different isotemporal classes of rotationally distinct diasters with n (rows) total peripheral edges with k (columns) peripheral edges on one side.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	3
4	1
5	6
6	1
7	8
8	6
9	1
10	10
11	12
12	1
13	12
14	15
15	10
16	1
17	14
18	18
19	20
20	1
21	16
22	21
23	24
24	15
25	1
26	18
27	24
28	28
29	30
30	1
31	20
32	27
33	32
34	35
35	21
36	1
37	22
38	30
39	36
40	40
41	42
42	1
43	24
44	33
45	40
46	45
47	48
48	28
49	1
50	26
51	36
52	44
53	50
54	54
55	56
56	1
57	28
58	39
59	48
60	55
61	60
62	63
63	36
64	1
65	30
66	42
67	52
68	60
69	66
70	70
71	72
72	1
73	32
74	45
75	56
76	65

n	a(n)
0	1
1	1
2	1
3	3
4	1
5	6
6	1
7	8
8	6
9	1
10	10
11	12
12	1
13	12
14	15
15	10
16	1
17	14
18	18
19	20
20	1
21	16
22	21
23	24
24	15
25	1
26	18
27	24
28	28
29	30
30	1
31	20
32	27
33	32
34	35
35	21
36	1
37	22
38	30
39	36
40	40
41	42
42	1
43	24
44	33
45	40
46	45
47	48
48	28
49	1
50	26
51	36
52	44
53	50
54	54
55	56
56	1
57	28
58	39
59	48
60	55
61	60
62	63
63	36
64	1
65	30
66	42
67	52
68	60
69	66
70	70
71	72
72	1
73	32
74	45
75	56
76	65

n	a(n)
0	1
1	1
2	1
3	3
4	1
5	6
6	1
7	8
8	6
9	1
10	10
11	12
12	1
13	12
14	15
15	10
16	1
17	14
18	18
19	20
20	1
21	16
22	21
23	24
24	15
25	1
26	18
27	24
28	28
29	30
30	1
31	20
32	27
33	32
34	35
35	21
36	1
37	22
38	30
39	36
40	40
41	42
42	1
43	24
44	33
45	40
46	45
47	48
48	28
49	1
50	26
51	36
52	44
53	50
54	54
55	56
56	1
57	28
58	39
59	48
60	55
61	60
62	63
63	36
64	1
65	30
66	42
67	52
68	60
69	66
70	70
71	72
72	1
73	32
74	45
75	56
76	65