A139600 - cp's OEIS frontend

A139600 Square array T(n,k) = n(k-1)k/2+k, of nonnegative numbers together with polygonal numbers, read by antidiagonals upwards.

n	a(n)
0	0
1	0
2	1
3	0
4	1
5	2
6	0
7	1
8	3
9	3
10	0
11	1
12	4
13	6
14	4
15	0
16	1
17	5
18	9
19	10
20	5
21	0
22	1
23	6
24	12
25	16
26	15
27	6
28	0
29	1
30	7
31	15
32	22
33	25
34	21
35	7
36	0
37	1
38	8
39	18
40	28
41	35
42	36
43	28
44	8
45	0
46	1
47	9
48	21
49	34
50	45
51	51
52	49
53	36
54	9
55	0
56	1
57	10
58	24
59	40
60	55
61	66
62	70
63	64
64	45
65	10
66	0
67	1
68	11
69	27
70	46
71	65
72	81
73	91
74	92
75	81
76	55
77	11

[0, 0, 1, 0, 1, 2, 0, 1, 3, 3, 0, 1, 4, 6, 4, 0, 1, 5, 9, 10, 5, 0, 1, 6, 12, 16, 15, 6, 0, 1, 7, 15, 22, 25, 21, 7, 0, 1, 8, 18, 28, 35, 36, 28, 8, 0, 1, 9, 21, 34, 45, 51, 49, 36, 9, 0, 1, 10, 24, 40, 55, 66, 70, 64, 45, 10, 0, 1, 11, 27, 46, 65, 81, 91, 92, 81, 55, 11]

cp's OEIS Frontend

A139600 Square array T(n,k) = n(k-1)k/2+k, of nonnegative numbers together with polygonal numbers, read by antidiagonals upwards.

Table of values

List of values

n	a(n)
0	0
1	0
2	1
3	0
4	1
5	2
6	0
7	1
8	3
9	3
10	0
11	1
12	4
13	6
14	4
15	0
16	1
17	5
18	9
19	10
20	5
21	0
22	1
23	6
24	12
25	16
26	15
27	6
28	0
29	1
30	7
31	15
32	22
33	25
34	21
35	7
36	0
37	1
38	8
39	18
40	28
41	35
42	36
43	28
44	8
45	0
46	1
47	9
48	21
49	34
50	45
51	51
52	49
53	36
54	9
55	0
56	1
57	10
58	24
59	40
60	55
61	66
62	70
63	64
64	45
65	10
66	0
67	1
68	11
69	27
70	46
71	65
72	81
73	91
74	92
75	81
76	55
77	11

n	a(n)
0	0
1	0
2	1
3	0
4	1
5	2
6	0
7	1
8	3
9	3
10	0
11	1
12	4
13	6
14	4
15	0
16	1
17	5
18	9
19	10
20	5
21	0
22	1
23	6
24	12
25	16
26	15
27	6
28	0
29	1
30	7
31	15
32	22
33	25
34	21
35	7
36	0
37	1
38	8
39	18
40	28
41	35
42	36
43	28
44	8
45	0
46	1
47	9
48	21
49	34
50	45
51	51
52	49
53	36
54	9
55	0
56	1
57	10
58	24
59	40
60	55
61	66
62	70
63	64
64	45
65	10
66	0
67	1
68	11
69	27
70	46
71	65
72	81
73	91
74	92
75	81
76	55
77	11

cp's OEIS Frontend

A139600 Square array T(n,k) = n*(k-1)*k/2+k, of nonnegative numbers together with polygonal numbers, read by antidiagonals upwards.

Table of values

List of values

A139600 Square array T(n,k) = n(k-1)k/2+k, of nonnegative numbers together with polygonal numbers, read by antidiagonals upwards.

n	a(n)
0	0
1	0
2	1
3	0
4	1
5	2
6	0
7	1
8	3
9	3
10	0
11	1
12	4
13	6
14	4
15	0
16	1
17	5
18	9
19	10
20	5
21	0
22	1
23	6
24	12
25	16
26	15
27	6
28	0
29	1
30	7
31	15
32	22
33	25
34	21
35	7
36	0
37	1
38	8
39	18
40	28
41	35
42	36
43	28
44	8
45	0
46	1
47	9
48	21
49	34
50	45
51	51
52	49
53	36
54	9
55	0
56	1
57	10
58	24
59	40
60	55
61	66
62	70
63	64
64	45
65	10
66	0
67	1
68	11
69	27
70	46
71	65
72	81
73	91
74	92
75	81
76	55
77	11