A221217 - cp's OEIS frontend

A221217 T(n,k) = ((n+k)^2-2n+3-(n+k-1)(1+2*(-1)^(n+k)))/2; n , k > 0, read by antidiagonals.

n	a(n)
1	1
2	6
3	5
4	4
5	3
6	2
7	15
8	14
9	13
10	12
11	11
12	10
13	9
14	8
15	7
16	28
17	27
18	26
19	25
20	24
21	23
22	22
23	21
24	20
25	19
26	18
27	17
28	16
29	45
30	44
31	43
32	42
33	41
34	40
35	39
36	38
37	37
38	36
39	35
40	34
41	33
42	32
43	31
44	30
45	29
46	66
47	65
48	64
49	63
50	62
51	61
52	60
53	59
54	58
55	57
56	56
57	55
58	54
59	53
60	52
61	51
62	50
63	49
64	48
65	47
66	46
67	91

[1, 6, 5, 4, 3, 2, 15, 14, 13, 12, 11, 10, 9, 8, 7, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 16, 45, 44, 43, 42, 41, 40, 39, 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 66, 65, 64, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46, 91]

cp's OEIS Frontend

A221217 T(n,k) = ((n+k)^2-2n+3-(n+k-1)(1+2*(-1)^(n+k)))/2; n , k > 0, read by antidiagonals.

Table of values

List of values

n	a(n)
1	1
2	6
3	5
4	4
5	3
6	2
7	15
8	14
9	13
10	12
11	11
12	10
13	9
14	8
15	7
16	28
17	27
18	26
19	25
20	24
21	23
22	22
23	21
24	20
25	19
26	18
27	17
28	16
29	45
30	44
31	43
32	42
33	41
34	40
35	39
36	38
37	37
38	36
39	35
40	34
41	33
42	32
43	31
44	30
45	29
46	66
47	65
48	64
49	63
50	62
51	61
52	60
53	59
54	58
55	57
56	56
57	55
58	54
59	53
60	52
61	51
62	50
63	49
64	48
65	47
66	46
67	91

n	a(n)
1	1
2	6
3	5
4	4
5	3
6	2
7	15
8	14
9	13
10	12
11	11
12	10
13	9
14	8
15	7
16	28
17	27
18	26
19	25
20	24
21	23
22	22
23	21
24	20
25	19
26	18
27	17
28	16
29	45
30	44
31	43
32	42
33	41
34	40
35	39
36	38
37	37
38	36
39	35
40	34
41	33
42	32
43	31
44	30
45	29
46	66
47	65
48	64
49	63
50	62
51	61
52	60
53	59
54	58
55	57
56	56
57	55
58	54
59	53
60	52
61	51
62	50
63	49
64	48
65	47
66	46
67	91

cp's OEIS Frontend

A221217 T(n,k) = ((n+k)^2-2*n+3-(n+k-1)*(1+2*(-1)^(n+k)))/2; n , k > 0, read by antidiagonals.

Table of values

List of values

A221217 T(n,k) = ((n+k)^2-2n+3-(n+k-1)(1+2*(-1)^(n+k)))/2; n , k > 0, read by antidiagonals.

n	a(n)
1	1
2	6
3	5
4	4
5	3
6	2
7	15
8	14
9	13
10	12
11	11
12	10
13	9
14	8
15	7
16	28
17	27
18	26
19	25
20	24
21	23
22	22
23	21
24	20
25	19
26	18
27	17
28	16
29	45
30	44
31	43
32	42
33	41
34	40
35	39
36	38
37	37
38	36
39	35
40	34
41	33
42	32
43	31
44	30
45	29
46	66
47	65
48	64
49	63
50	62
51	61
52	60
53	59
54	58
55	57
56	56
57	55
58	54
59	53
60	52
61	51
62	50
63	49
64	48
65	47
66	46
67	91