A129819 - cp's OEIS frontend

A129819 Antidiagonal sums of triangular array T: T(j,k) = (k+1)/2 for odd k, T(j,k) = 0 for k = 0, T(j,k) = j+1-k/2 for even k > 0; 0 <= k <= j.

n	a(n)
0	0
1	0
2	1
3	1
4	3
5	4
6	7
7	8
8	12
9	14
10	19
11	21
12	27
13	30
14	37
15	40
16	48
17	52
18	61
19	65
20	75
21	80
22	91
23	96
24	108
25	114
26	127
27	133
28	147
29	154
30	169
31	176
32	192
33	200
34	217
35	225
36	243
37	252
38	271
39	280
40	300
41	310
42	331
43	341
44	363
45	374
46	397
47	408
48	432
49	444
50	469
51	481
52	507
53	520
54	547
55	560
56	588
57	602
58	631

[0, 0, 1, 1, 3, 4, 7, 8, 12, 14, 19, 21, 27, 30, 37, 40, 48, 52, 61, 65, 75, 80, 91, 96, 108, 114, 127, 133, 147, 154, 169, 176, 192, 200, 217, 225, 243, 252, 271, 280, 300, 310, 331, 341, 363, 374, 397, 408, 432, 444, 469, 481, 507, 520, 547, 560, 588, 602, 631]

cp's OEIS Frontend

A129819 Antidiagonal sums of triangular array T: T(j,k) = (k+1)/2 for odd k, T(j,k) = 0 for k = 0, T(j,k) = j+1-k/2 for even k > 0; 0 <= k <= j.

Table of values

List of values

n	a(n)
0	0
1	0
2	1
3	1
4	3
5	4
6	7
7	8
8	12
9	14
10	19
11	21
12	27
13	30
14	37
15	40
16	48
17	52
18	61
19	65
20	75
21	80
22	91
23	96
24	108
25	114
26	127
27	133
28	147
29	154
30	169
31	176
32	192
33	200
34	217
35	225
36	243
37	252
38	271
39	280
40	300
41	310
42	331
43	341
44	363
45	374
46	397
47	408
48	432
49	444
50	469
51	481
52	507
53	520
54	547
55	560
56	588
57	602
58	631

n	a(n)
0	0
1	0
2	1
3	1
4	3
5	4
6	7
7	8
8	12
9	14
10	19
11	21
12	27
13	30
14	37
15	40
16	48
17	52
18	61
19	65
20	75
21	80
22	91
23	96
24	108
25	114
26	127
27	133
28	147
29	154
30	169
31	176
32	192
33	200
34	217
35	225
36	243
37	252
38	271
39	280
40	300
41	310
42	331
43	341
44	363
45	374
46	397
47	408
48	432
49	444
50	469
51	481
52	507
53	520
54	547
55	560
56	588
57	602
58	631

n	a(n)
0	0
1	0
2	1
3	1
4	3
5	4
6	7
7	8
8	12
9	14
10	19
11	21
12	27
13	30
14	37
15	40
16	48
17	52
18	61
19	65
20	75
21	80
22	91
23	96
24	108
25	114
26	127
27	133
28	147
29	154
30	169
31	176
32	192
33	200
34	217
35	225
36	243
37	252
38	271
39	280
40	300
41	310
42	331
43	341
44	363
45	374
46	397
47	408
48	432
49	444
50	469
51	481
52	507
53	520
54	547
55	560
56	588
57	602
58	631