A257642 - cp's OEIS frontend

A257642 Positive integers N such that there is a triangle with rational sides having area and perimeter both equal N.

n	a(n)
1	21
2	24
3	26
4	27
5	28
6	30
7	31
8	33
9	35
10	36
11	37
12	39
13	42
14	43
15	45
16	47
17	50
18	51
19	52
20	55
21	56
22	58
23	60
24	61
25	62
26	63
27	64
28	66
29	67
30	71
31	74
32	75
33	76
34	77
35	79
36	81
37	83
38	85
39	86
40	88
41	90
42	91
43	93
44	94
45	95
46	96
47	98
48	99
49	100
50	102
51	103
52	105
53	106
54	107
55	108
56	109
57	110
58	112
59	113
60	115
61	116
62	120
63	121
64	122
65	123
66	124
67	125
68	126
69	127
70	128
71	129
72	130
73	131
74	132
75	133
76	137
77	138
78	141
79	143
80	145
81	147
82	148
83	149
84	150

[21, 24, 26, 27, 28, 30, 31, 33, 35, 36, 37, 39, 42, 43, 45, 47, 50, 51, 52, 55, 56, 58, 60, 61, 62, 63, 64, 66, 67, 71, 74, 75, 76, 77, 79, 81, 83, 85, 86, 88, 90, 91, 93, 94, 95, 96, 98, 99, 100, 102, 103, 105, 106, 107, 108, 109, 110, 112, 113, 115, 116, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 137, 138, 141, 143, 145, 147, 148, 149, 150]

cp's OEIS Frontend

A257642 Positive integers N such that there is a triangle with rational sides having area and perimeter both equal N.

Table of values

List of values

n	a(n)
1	21
2	24
3	26
4	27
5	28
6	30
7	31
8	33
9	35
10	36
11	37
12	39
13	42
14	43
15	45
16	47
17	50
18	51
19	52
20	55
21	56
22	58
23	60
24	61
25	62
26	63
27	64
28	66
29	67
30	71
31	74
32	75
33	76
34	77
35	79
36	81
37	83
38	85
39	86
40	88
41	90
42	91
43	93
44	94
45	95
46	96
47	98
48	99
49	100
50	102
51	103
52	105
53	106
54	107
55	108
56	109
57	110
58	112
59	113
60	115
61	116
62	120
63	121
64	122
65	123
66	124
67	125
68	126
69	127
70	128
71	129
72	130
73	131
74	132
75	133
76	137
77	138
78	141
79	143
80	145
81	147
82	148
83	149
84	150

n	a(n)
1	21
2	24
3	26
4	27
5	28
6	30
7	31
8	33
9	35
10	36
11	37
12	39
13	42
14	43
15	45
16	47
17	50
18	51
19	52
20	55
21	56
22	58
23	60
24	61
25	62
26	63
27	64
28	66
29	67
30	71
31	74
32	75
33	76
34	77
35	79
36	81
37	83
38	85
39	86
40	88
41	90
42	91
43	93
44	94
45	95
46	96
47	98
48	99
49	100
50	102
51	103
52	105
53	106
54	107
55	108
56	109
57	110
58	112
59	113
60	115
61	116
62	120
63	121
64	122
65	123
66	124
67	125
68	126
69	127
70	128
71	129
72	130
73	131
74	132
75	133
76	137
77	138
78	141
79	143
80	145
81	147
82	148
83	149
84	150

n	a(n)
1	21
2	24
3	26
4	27
5	28
6	30
7	31
8	33
9	35
10	36
11	37
12	39
13	42
14	43
15	45
16	47
17	50
18	51
19	52
20	55
21	56
22	58
23	60
24	61
25	62
26	63
27	64
28	66
29	67
30	71
31	74
32	75
33	76
34	77
35	79
36	81
37	83
38	85
39	86
40	88
41	90
42	91
43	93
44	94
45	95
46	96
47	98
48	99
49	100
50	102
51	103
52	105
53	106
54	107
55	108
56	109
57	110
58	112
59	113
60	115
61	116
62	120
63	121
64	122
65	123
66	124
67	125
68	126
69	127
70	128
71	129
72	130
73	131
74	132
75	133
76	137
77	138
78	141
79	143
80	145
81	147
82	148
83	149
84	150