A024164 - cp's OEIS frontend

A024164 Number of integer-sided triangles with sides a,b,c, a such that c - b = b - a.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	1
10	0
11	0
12	1
13	0
14	0
15	2
16	0
17	0
18	2
19	0
20	0
21	3
22	0
23	0
24	3
25	0
26	0
27	4
28	0
29	0
30	4
31	0
32	0
33	5
34	0
35	0
36	5
37	0
38	0
39	6
40	0
41	0
42	6
43	0
44	0
45	7
46	0
47	0
48	7
49	0
50	0
51	8
52	0
53	0
54	8
55	0
56	0
57	9
58	0
59	0
60	9
61	0
62	0
63	10
64	0
65	0
66	10
67	0
68	0
69	11
70	0
71	0
72	11
73	0
74	0
75	12
76	0
77	0
78	12
79	0
80	0
81	13
82	0
83	0
84	13
85	0
86	0
87	14
88	0
89	0
90	14
91	0
92	0
93	15
94	0
95	0
96	15
97	0
98	0
99	16
100	0
101	0
102	16

[0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 2, 0, 0, 2, 0, 0, 3, 0, 0, 3, 0, 0, 4, 0, 0, 4, 0, 0, 5, 0, 0, 5, 0, 0, 6, 0, 0, 6, 0, 0, 7, 0, 0, 7, 0, 0, 8, 0, 0, 8, 0, 0, 9, 0, 0, 9, 0, 0, 10, 0, 0, 10, 0, 0, 11, 0, 0, 11, 0, 0, 12, 0, 0, 12, 0, 0, 13, 0, 0, 13, 0, 0, 14, 0, 0, 14, 0, 0, 15, 0, 0, 15, 0, 0, 16, 0, 0, 16]

cp's OEIS Frontend

A024164 Number of integer-sided triangles with sides a,b,c, a such that c - b = b - a.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	1
10	0
11	0
12	1
13	0
14	0
15	2
16	0
17	0
18	2
19	0
20	0
21	3
22	0
23	0
24	3
25	0
26	0
27	4
28	0
29	0
30	4
31	0
32	0
33	5
34	0
35	0
36	5
37	0
38	0
39	6
40	0
41	0
42	6
43	0
44	0
45	7
46	0
47	0
48	7
49	0
50	0
51	8
52	0
53	0
54	8
55	0
56	0
57	9
58	0
59	0
60	9
61	0
62	0
63	10
64	0
65	0
66	10
67	0
68	0
69	11
70	0
71	0
72	11
73	0
74	0
75	12
76	0
77	0
78	12
79	0
80	0
81	13
82	0
83	0
84	13
85	0
86	0
87	14
88	0
89	0
90	14
91	0
92	0
93	15
94	0
95	0
96	15
97	0
98	0
99	16
100	0
101	0
102	16

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	1
10	0
11	0
12	1
13	0
14	0
15	2
16	0
17	0
18	2
19	0
20	0
21	3
22	0
23	0
24	3
25	0
26	0
27	4
28	0
29	0
30	4
31	0
32	0
33	5
34	0
35	0
36	5
37	0
38	0
39	6
40	0
41	0
42	6
43	0
44	0
45	7
46	0
47	0
48	7
49	0
50	0
51	8
52	0
53	0
54	8
55	0
56	0
57	9
58	0
59	0
60	9
61	0
62	0
63	10
64	0
65	0
66	10
67	0
68	0
69	11
70	0
71	0
72	11
73	0
74	0
75	12
76	0
77	0
78	12
79	0
80	0
81	13
82	0
83	0
84	13
85	0
86	0
87	14
88	0
89	0
90	14
91	0
92	0
93	15
94	0
95	0
96	15
97	0
98	0
99	16
100	0
101	0
102	16

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	1
10	0
11	0
12	1
13	0
14	0
15	2
16	0
17	0
18	2
19	0
20	0
21	3
22	0
23	0
24	3
25	0
26	0
27	4
28	0
29	0
30	4
31	0
32	0
33	5
34	0
35	0
36	5
37	0
38	0
39	6
40	0
41	0
42	6
43	0
44	0
45	7
46	0
47	0
48	7
49	0
50	0
51	8
52	0
53	0
54	8
55	0
56	0
57	9
58	0
59	0
60	9
61	0
62	0
63	10
64	0
65	0
66	10
67	0
68	0
69	11
70	0
71	0
72	11
73	0
74	0
75	12
76	0
77	0
78	12
79	0
80	0
81	13
82	0
83	0
84	13
85	0
86	0
87	14
88	0
89	0
90	14
91	0
92	0
93	15
94	0
95	0
96	15
97	0
98	0
99	16
100	0
101	0
102	16