A133597 - cp's OEIS frontend

A133597 Array of semiprimes, read by antidiagonals, where row k is the first of pairs of consecutive semiprimes j and j+k.

n	a(n)
1	9
2	4
3	14
4	6
5	49
6	21
7	10
8	22
9	55
10	25
11	69
12	51
13	35
14	91
15	33
16	15
17	77
18	58
19	46
20	119
21	34
22	26
23	123
24	106
25	65
26	62
27	143
28	38
29	169
30	39
31	365
32	161
33	87
34	74
35	159
36	57
37	146
38	437
39	134
40	371
41	178
42	111
43	82
44	183
45	85
46	237
47	226
48	458
49	187
50	505
51	221
52	129
53	115
54	185
55	86

[9, 4, 14, 6, 49, 21, 10, 22, 55, 25, 69, 51, 35, 91, 33, 15, 77, 58, 46, 119, 34, 26, 123, 106, 65, 62, 143, 38, 169, 39, 365, 161, 87, 74, 159, 57, 146, 437, 134, 371, 178, 111, 82, 183, 85, 237, 226, 458, 187, 505, 221, 129, 115, 185, 86]

cp's OEIS Frontend

A133597 Array of semiprimes, read by antidiagonals, where row k is the first of pairs of consecutive semiprimes j and j+k.

Table of values

List of values

n	a(n)
1	9
2	4
3	14
4	6
5	49
6	21
7	10
8	22
9	55
10	25
11	69
12	51
13	35
14	91
15	33
16	15
17	77
18	58
19	46
20	119
21	34
22	26
23	123
24	106
25	65
26	62
27	143
28	38
29	169
30	39
31	365
32	161
33	87
34	74
35	159
36	57
37	146
38	437
39	134
40	371
41	178
42	111
43	82
44	183
45	85
46	237
47	226
48	458
49	187
50	505
51	221
52	129
53	115
54	185
55	86

n	a(n)
1	9
2	4
3	14
4	6
5	49
6	21
7	10
8	22
9	55
10	25
11	69
12	51
13	35
14	91
15	33
16	15
17	77
18	58
19	46
20	119
21	34
22	26
23	123
24	106
25	65
26	62
27	143
28	38
29	169
30	39
31	365
32	161
33	87
34	74
35	159
36	57
37	146
38	437
39	134
40	371
41	178
42	111
43	82
44	183
45	85
46	237
47	226
48	458
49	187
50	505
51	221
52	129
53	115
54	185
55	86

n	a(n)
1	9
2	4
3	14
4	6
5	49
6	21
7	10
8	22
9	55
10	25
11	69
12	51
13	35
14	91
15	33
16	15
17	77
18	58
19	46
20	119
21	34
22	26
23	123
24	106
25	65
26	62
27	143
28	38
29	169
30	39
31	365
32	161
33	87
34	74
35	159
36	57
37	146
38	437
39	134
40	371
41	178
42	111
43	82
44	183
45	85
46	237
47	226
48	458
49	187
50	505
51	221
52	129
53	115
54	185
55	86