A340804 - cp's OEIS frontend

A340804 Triangle read by rows: T(n, k) = 1 + k(n - 1) + (2k - n - 1)*(k mod 2) with 0 < k <= n.

n	a(n)
1	1
2	1
3	3
4	1
5	5
6	9
7	1
8	7
9	11
10	13
11	1
12	9
13	13
14	17
15	25
16	1
17	11
18	15
19	21
20	29
21	31
22	1
23	13
24	17
25	25
26	33
27	37
28	49
29	1
30	15
31	19
32	29
33	37
34	43
35	55
36	57
37	1
38	17
39	21
40	33
41	41
42	49
43	61
44	65
45	81
46	1
47	19
48	23
49	37
50	45
51	55
52	67
53	73
54	89
55	91
56	1
57	21
58	25
59	41
60	49
61	61
62	73
63	81
64	97
65	101
66	121
67	1
68	23
69	27
70	45
71	53
72	67
73	79
74	89
75	105
76	111
77	131
78	133

[1, 1, 3, 1, 5, 9, 1, 7, 11, 13, 1, 9, 13, 17, 25, 1, 11, 15, 21, 29, 31, 1, 13, 17, 25, 33, 37, 49, 1, 15, 19, 29, 37, 43, 55, 57, 1, 17, 21, 33, 41, 49, 61, 65, 81, 1, 19, 23, 37, 45, 55, 67, 73, 89, 91, 1, 21, 25, 41, 49, 61, 73, 81, 97, 101, 121, 1, 23, 27, 45, 53, 67, 79, 89, 105, 111, 131, 133]

cp's OEIS Frontend

A340804 Triangle read by rows: T(n, k) = 1 + k(n - 1) + (2k - n - 1)*(k mod 2) with 0 < k <= n.

Table of values

List of values

n	a(n)
1	1
2	1
3	3
4	1
5	5
6	9
7	1
8	7
9	11
10	13
11	1
12	9
13	13
14	17
15	25
16	1
17	11
18	15
19	21
20	29
21	31
22	1
23	13
24	17
25	25
26	33
27	37
28	49
29	1
30	15
31	19
32	29
33	37
34	43
35	55
36	57
37	1
38	17
39	21
40	33
41	41
42	49
43	61
44	65
45	81
46	1
47	19
48	23
49	37
50	45
51	55
52	67
53	73
54	89
55	91
56	1
57	21
58	25
59	41
60	49
61	61
62	73
63	81
64	97
65	101
66	121
67	1
68	23
69	27
70	45
71	53
72	67
73	79
74	89
75	105
76	111
77	131
78	133

n	a(n)
1	1
2	1
3	3
4	1
5	5
6	9
7	1
8	7
9	11
10	13
11	1
12	9
13	13
14	17
15	25
16	1
17	11
18	15
19	21
20	29
21	31
22	1
23	13
24	17
25	25
26	33
27	37
28	49
29	1
30	15
31	19
32	29
33	37
34	43
35	55
36	57
37	1
38	17
39	21
40	33
41	41
42	49
43	61
44	65
45	81
46	1
47	19
48	23
49	37
50	45
51	55
52	67
53	73
54	89
55	91
56	1
57	21
58	25
59	41
60	49
61	61
62	73
63	81
64	97
65	101
66	121
67	1
68	23
69	27
70	45
71	53
72	67
73	79
74	89
75	105
76	111
77	131
78	133

cp's OEIS Frontend

A340804 Triangle read by rows: T(n, k) = 1 + k*(n - 1) + (2*k - n - 1)*(k mod 2) with 0 < k <= n.

Table of values

List of values

A340804 Triangle read by rows: T(n, k) = 1 + k(n - 1) + (2k - n - 1)*(k mod 2) with 0 < k <= n.

n	a(n)
1	1
2	1
3	3
4	1
5	5
6	9
7	1
8	7
9	11
10	13
11	1
12	9
13	13
14	17
15	25
16	1
17	11
18	15
19	21
20	29
21	31
22	1
23	13
24	17
25	25
26	33
27	37
28	49
29	1
30	15
31	19
32	29
33	37
34	43
35	55
36	57
37	1
38	17
39	21
40	33
41	41
42	49
43	61
44	65
45	81
46	1
47	19
48	23
49	37
50	45
51	55
52	67
53	73
54	89
55	91
56	1
57	21
58	25
59	41
60	49
61	61
62	73
63	81
64	97
65	101
66	121
67	1
68	23
69	27
70	45
71	53
72	67
73	79
74	89
75	105
76	111
77	131
78	133