A066201 - cp's OEIS frontend

A066201 Array read by antidiagonals upwards: for n-th row (n>=0), T(n,0) = 1; for k > 0, T(n,k) = T(n,k-1)-(n+k-1) if this is positive and has not already appeared in this row, otherwise T(n,k) = T(n,k-1)+(n+k-1).

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

[1, 1, 1, 1, 2, 2, 1, 3, 4, 4, 1, 4, 6, 7, 7, 1, 5, 8, 2, 3, 3, 1, 6, 10, 3, 7, 8, 8, 1, 7, 12, 4, 9, 13, 14, 14, 1, 8, 14, 5, 11, 2, 20, 21, 21, 1, 9, 16, 6, 13, 3, 10, 12, 13, 13, 1, 10, 18, 7, 15, 4, 12, 19, 21, 22, 22, 1, 11, 20, 8, 17, 5, 14, 2, 29, 11, 12, 12]

cp's OEIS Frontend

A066201 Array read by antidiagonals upwards: for n-th row (n>=0), T(n,0) = 1; for k > 0, T(n,k) = T(n,k-1)-(n+k-1) if this is positive and has not already appeared in this row, otherwise T(n,k) = T(n,k-1)+(n+k-1).

Table of values

List of values

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

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

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