A109647 - cp's OEIS frontend

A109647 Triangle, read by rows, of the number of different isotemporal classes of diasters with n (row) total peripheral edges with k (column) peripheral edges on the a given side.

n	a(n)
0	1
1	1
2	1
3	1
4	3
5	1
6	1
7	6
8	6
9	1
10	1
11	8
12	6
13	8
14	1
15	1
16	10
17	12
18	12
19	10
20	1
21	1
22	12
23	15
24	10
25	15
26	12
27	1
28	1
29	14
30	18
31	20
32	20
33	18
34	14
35	1
36	1
37	16
38	21
39	24
40	15
41	24
42	21
43	16
44	1
45	1
46	18
47	24
48	28
49	30
50	30
51	28
52	24
53	18
54	1
55	1
56	20
57	27
58	32
59	35
60	21
61	35
62	32
63	27
64	20
65	1
66	1
67	22
68	30
69	36
70	40
71	42
72	42
73	40
74	36
75	30
76	22
77	1
78	1
79	24

[1, 1, 1, 1, 3, 1, 1, 6, 6, 1, 1, 8, 6, 8, 1, 1, 10, 12, 12, 10, 1, 1, 12, 15, 10, 15, 12, 1, 1, 14, 18, 20, 20, 18, 14, 1, 1, 16, 21, 24, 15, 24, 21, 16, 1, 1, 18, 24, 28, 30, 30, 28, 24, 18, 1, 1, 20, 27, 32, 35, 21, 35, 32, 27, 20, 1, 1, 22, 30, 36, 40, 42, 42, 40, 36, 30, 22, 1, 1, 24]

cp's OEIS Frontend

A109647 Triangle, read by rows, of the number of different isotemporal classes of diasters with n (row) total peripheral edges with k (column) peripheral edges on the a given side.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	1
4	3
5	1
6	1
7	6
8	6
9	1
10	1
11	8
12	6
13	8
14	1
15	1
16	10
17	12
18	12
19	10
20	1
21	1
22	12
23	15
24	10
25	15
26	12
27	1
28	1
29	14
30	18
31	20
32	20
33	18
34	14
35	1
36	1
37	16
38	21
39	24
40	15
41	24
42	21
43	16
44	1
45	1
46	18
47	24
48	28
49	30
50	30
51	28
52	24
53	18
54	1
55	1
56	20
57	27
58	32
59	35
60	21
61	35
62	32
63	27
64	20
65	1
66	1
67	22
68	30
69	36
70	40
71	42
72	42
73	40
74	36
75	30
76	22
77	1
78	1
79	24

n	a(n)
0	1
1	1
2	1
3	1
4	3
5	1
6	1
7	6
8	6
9	1
10	1
11	8
12	6
13	8
14	1
15	1
16	10
17	12
18	12
19	10
20	1
21	1
22	12
23	15
24	10
25	15
26	12
27	1
28	1
29	14
30	18
31	20
32	20
33	18
34	14
35	1
36	1
37	16
38	21
39	24
40	15
41	24
42	21
43	16
44	1
45	1
46	18
47	24
48	28
49	30
50	30
51	28
52	24
53	18
54	1
55	1
56	20
57	27
58	32
59	35
60	21
61	35
62	32
63	27
64	20
65	1
66	1
67	22
68	30
69	36
70	40
71	42
72	42
73	40
74	36
75	30
76	22
77	1
78	1
79	24

n	a(n)
0	1
1	1
2	1
3	1
4	3
5	1
6	1
7	6
8	6
9	1
10	1
11	8
12	6
13	8
14	1
15	1
16	10
17	12
18	12
19	10
20	1
21	1
22	12
23	15
24	10
25	15
26	12
27	1
28	1
29	14
30	18
31	20
32	20
33	18
34	14
35	1
36	1
37	16
38	21
39	24
40	15
41	24
42	21
43	16
44	1
45	1
46	18
47	24
48	28
49	30
50	30
51	28
52	24
53	18
54	1
55	1
56	20
57	27
58	32
59	35
60	21
61	35
62	32
63	27
64	20
65	1
66	1
67	22
68	30
69	36
70	40
71	42
72	42
73	40
74	36
75	30
76	22
77	1
78	1
79	24